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Alisa Meredith

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The National Sanitation Foundation (NSF) International Certifications are not entirely new, especially regarding water filters and similar products. However, only a few people understand how they work and why they are necessary. This is why we have prepared this blog to answer all the questions you may know about NSF certifications and listings.
NSF International was founded in 1944 as a not-for-profit corporation saddled with the responsibility of promoting good sanitation. It pursues this aim by combining experts in public health, sanitation, and manufacturing, from the public, academic, manufacturing, and government sectors to collectively develop and enforce performance standards for products directly linked to sanitation and public health. NSF has several well-equipped laboratories where it tests products to verify if they meet the set standards.
NSF receives products from manufacturers for standard evaluations. Only products that pass these evaluations are "listed" and "certified" for certain tests. After a successful review, the NSI authorizes manufacturers to put the NSF/ANSI seal on the labels of these products. Despite being a non-governmental body, the NSF International has a contract with the United States Environmental Protection Agency, which confers an official recognition as a reputable agency for assessing and approving chemicals and materials used in water treatment plants and drinking water systems.
The American National Standards Institute (ANSI) and the Dutch Council for Certification (RVC) recognize the NSF International standards. The ANSI was founded in 1981 as a private, non-profit organization with the vision to improve "the global competitiveness of U.S. business and the American quality of life by promoting and facilitating voluntary consensus standards."
The NSF International is one of the most reputable public agencies in the world. It is well-known for its credibility, independence, and competence in discharging its duties. The corporation is currently a registrar for the International Standards Organization (ISO) and a World Health Organization (WHO) Collaborating Center for Water Safety and Treatment.
Customers benefit from the protection NSF standards offer. NSF-certified products are generally considered safer and more reliable, with no risk of causing serious health concerns or a negative customer experience. Customers can rest assured they are purchasing the best quality products that will perform as advertised.
The NSF/ANSI seal on products usually includes a number representing the category of filtration performance it has been tested to provide. The "ANSI" part represents the American National Standards Institute. Both the ANSI and NSF have instituted multiple processes to ensure transparency and objectivity in their assessment. They work closely with a vast network of members from diverse sectors of the society to create standards for filters and other water products. The NSF/ANSI team comprises academics, consumers, environmental associations, government entities, industry representatives, public health officials, and private citizens.
We currently have two NSF International/ANSI Standards for "Drinking Water Treatment Units." However, these do not include the other standards for ultra-violet, ion exchange, and reverse osmosis units. The first is Standard 42 for Aesthetic Effects and the second Standard 53 for Health Effects. Both are similar, especially in terms of requirements.
Whenever a manufacturer claims that a water filter is NSF-listed or NSF-certified, it essentially implies that;
  • The construction process is standardized and have been tested and confirmed to;
    • Use acceptable water treatment media and methods.
    • Adopt safe, tested, and documented construction materials.
    • Adhere to the basic standards of hydraulic and mechanical strength.
    • Adhere to minimum standards of hydraulic functioning, including considerable freedom from dumping and channeling, maximum initial pressure drop, and minimum flow rate.
  • The product has been properly advertised and labeled.
  • The product has been re-tested, with the manufacturing procedures, facilities, and documentations subjected to manual audition;
  • The product has been tested and approved for a certain function(s), which can be found next to the NSF International seal on the product labels and literature.
For example, if a water filter has a Standard 42 (aesthetic effects) certification, it means it has been designed to reduce non-health-released contaminants, including particulates, odor, taste, and chlorine.
The classes for taste and odor are represented by the chlorine reduction efficiency as shown below;
  • Class I – Reduces not less than 75% chlorine
  • Class II – Reduces up to 50% chlorine
  • Class III – Reduces up to 25% chlorine
When it comes to mechanical filtration, the classes are represented by the particle size ranges the filters can reduce with a minimum of 85% efficiency:
  • Class I – Reduces 0.5-1 microns-sized particles
  • Class II – Reduces 1-5 microns-sized particles
  • Class III – Reduces 5-15 microns-sized particles
  • Class IV – Reduces 15-30 microns-sized particles
  • Class V – Reduces 30-50 microns-sized particles
  • Class VI – Reduces 50+ microns-sized particles
PIC: solution
NB – The fact that a product belongs to Class I or Class II doesn't make it automatically effective against cysts. A water filter will only reduce cyst if it has a 99.95% minimum filtration efficiency for 3–4-micron test dust particles, 3.000-micron micro-spheres, or live cryptosporidium oocysts.
If a water filter has a Standard 53 certification for health effects, it is effective against health-related contaminants often found in public or private drinking water. Such filters can help you reduce the exposure of your water to particulate, chemical, or microbiological contaminants that may cause adverse health effects. These filter types are ideal for well water filtration.
There are filters with both Standard 42 and 53 certifications, meeting health-related and aesthetic claims, such as Waterdrop G3 reverse osmosis water filtration system.
The first thing to consider in the comparison of water treatment technologies and products is the NSF certification. The certification shows that the product has been subjected to an independent, third-party check that confirmed it works as advertised. This can give consumers a certain level of confidence that they are getting a good and reliable product. NSF certifications also make it easier to compare drinking water systems and solutions, considering that almost all the options in the market have undergone and passed these tests.
It is easy to confirm that a product is NSF-certified: just check for the NSF certification seal on the packaging and/or proceed to the NSF official website (www.nsf.org) to confirm that the product has been certified by the NSF as the manufacturer claims.
If you do your detail work by yourself, you are most likely dealing with the problem of spots appearing on the body, making it look like you never cleaned the car. That can be really frustrating. But fortunately, you can avoid it by putting a few basic measures in place. Once you apply these tips before waxing, washing, or drying your car, you can prevent these stains and the eye-sore that comes with them.

Reduce Lint Deposits with a Microfiber Cloth.

The regular lint deposit is a major cause of the spots on your car. For instance, the unused lint accumulates moisture on a specific section of the car’s body, leading to the appearance of a round spot that gets lighter than the paint after complete drying. Likewise, the lint facilitates streaking, another major deformation that becomes even more prominent with time.
A microfiber cloth ensures zero accumulation of lint after drying the car off after waxing or washing. While paper towels, hand towels, or bath towels forces the lint deep into the surface, the microfiber cloth holds it lightly to the surface.

Do Dot Wax Or Wash Under The Sun.

The bright midday sun can be an inviting period to clean your car. But it is not the best time because it leaves unsightly effects on your car’s exterior surface when waxing or drying the vehicle. The car surface becomes hotter when exposed to direct sunlight. However, the exposure is uneven, leading to the formation of spots and streaks of different sizes. In the end, the car appears like it was never washed.
The best time to wash your car is when the weather is cool. Alternatively, you can do it under a shade or in an interior area with adequate midday sunlight. Such conditions do not adversely affect the eventual appearance of your car after waxing, drying, or washing.

Use The Right Water Filtration Devices for Outside Hoses.

You can still have spots on the surface of your car despite avoiding the sun and using a microfiber cloth. And that is because the mineral deposits from the soft or hard water you are using to wash your car dry up irregularly to form a thin and awkward-looking residue on some parts of your car surface. The deposition is similar to what you see when there is soap scum in the shower or when you leave a dirty drinking glass unwashed in the sink for too long.
Therefore, we recommend that you opt for filtration systems that filter your water directly from the central source or just the water coming out from your hose. If you prefer the latter, you only need an attachment filter that is fastened onto the nozzle. The goal here is to filter the water and remove the hard water minerals that cause spots, leaving your car shining after washing and more prepared for effective waxing.

AQUACREST Inline Water Filter

Improved Formula
While other brands offer only single filtration inline water filters, AQUACREST goes above and beyond to deliver an advanced composite filter with superior resin. As a result, our filter reduces water spots efficiently, removing the need for a microfiber cloth. It also makes your job faster and easier.
Excellent Filtration Performance
You can reduce more harmful chemicals in your water more efficiently with our multiple-filtration filter. Thanks to its 5-micron filter aperture, it is effective against bad odor, taste, chlorine, and sediments, ensuring you get clean water that keeps your car’s paintwork perfect.
Quality Product For Less
We priced this filter cost-effectively to help you save money on car washing services. It cleans your car better, faster, and easier.
Extended Service Life
You are spending less on this inline car wash filter than paying for car washing services every week. And with the upgraded formula, the filter delivers an extended service life and storage life, helping you save even more money on replacement.
Perfect Fit
The AQUACREST inline car wash filter is compatible with all the standard ¾” garden hose threads with 100% fit. The product is durable, safe, and easy to use while meeting all your outdoor water needs. Install a unit and enjoy clean and fresh water for your car washing and gardening activities for up to a month.

Unger Rinse 'n' Go Spotless Car Washing System

Best-in-Class Technology
The filtration technology in this filter is on par with what professional car washing services use to do a spotless and streak-free job.
NB – It is best to keep your washed car in the garage for drying if you have pollen in the air; this helps prevent spots formation.
Easy To Use.
This filter spots a compact and lightweight design and is ready to use straight out of the box. The kit comprises a soap-blasting nozzle, a resin bag, an 8ft input hose, a TDS meter, and a Rinse’ n’ Go unit.
Deionization Filter Included.
The deionization effect ensures that all the minerals and contaminants that cause spots are eliminated from your tap water. However, you may use up the resin bags faster if you are dealing with super hard water.

Simplest RV & Car Wash Kit

Your vehicle’s exterior is at more risk of defacing with hard water spots. Fortunately, this deionizing system can efficiently remove all the minerals in the water, helping you achieve a spotless wash.
This CR spotless water system gives you a perfect wash and dry, with no spots whatsoever. The deionized water from this system is suitable for cleaning your cars, RVs, boats, golf carts, motorcycles, and even house windows. This technology is their secret ingredient if you wonder how detailers, window cleaners, and car washers attain such stunning results.
We have now packed the same technology in this portable and compact CR Spotless Water System. Now you can work smarter and get better results without breaking the bank. With the DIC-20, you can get up to 300 gallons of mineral-free, deionized filtered water, although this may vary due to your water quality.
There are two 20-inch deionization housings, each with replaceable and refillable cartridges that easily slide into the watertight tubes.
The entire unit sits conveniently on a powder-coated, anti-rust rolling cart, making movement seamless and storage easier. All the parts and accessories for installation and first-time use are included in the package.
Therefore, in the box, you get 2x 20-inch deionizing resin cartridges, a stainless-steel input line, a spray nozzle, a battery-operated water purity indicator with a 1-year lifespan, and a spray nozzle.

Rinse with Free-Flowing Water.

Considering its speed and ease of use, it is easier to use a spray or “jet” feature with the hose when rinsing your car. However, it is less efficient and almost always leaves spots on your newly washed cars after drying.
A better alternative is using a hose without a nozzle. The setup ensures a free flow that delivers a self-drying rinse with an almost perfect appearance after drying.

It Is Easier to Avoid Spotty Rinses.

You can always get a spotless wash, rinse, and wax if you plan carefully and choose slower, more efficient, and deliberate detailing work over quick fixes. This combination helps to reduce the spots and enhance the shine of your newly washed car.
Imagine the confidence that comes with driving a spotless car into town. You deserve to feel good in your vehicle. Just apply the tips provided in this blog, and you are good to go.
Going in for a sip of your piping hot morning coffee is something many individuals look forward to each and every day. However, there is nothing more disappointing than taking in a sip, and noticing the flavors are all off. Because our sense of taste also works with smell, it may be difficult to ascertain what exactly went wrong during the brewing process.
Thankfully, if you find that your coffee just never hits the mark, there are simply ways in which you may make various improvements. Avoid bitter coffee and dump that mug of sadness – we want to let you in on a little secret. Good tasting coffee is not only possible, it's something anyone can master. Continue by taking a look at the following tips and tricks and, before long, you will be enjoying freshly brewed coffee from your very own kitchen.

Start With a Good Foundation

If you aren't willing to do something right, why even try at all? When a carpenter begins building a house, they ensure they have a strong foundation in place before moving forward – coffee is no different. This is why you cannot overlook the essentials, regardless of how easy it is to take a short cut.

Finding Fresh Coffee

Don't run out and buy the first bag of Starbucks coffee you see. In fact, stay far away from anything your supermarket carries. Your best bet is to find a small batch roaster nearby, or peruse a few listed on Amazon. Even if the local grocery store is your only option, there are a few pointers to follow:
  • Buy Whole Bean Coffee
    Even if this means purchasing a burr coffee grinder, you will soon find it is worth the extra effort. Plus, whole beans mean there is a decreased chance of oxidation. Grind beans fresh for each brew.
  • Check the Expiration Date
    This is typically located on the bottom of the bag. Avoid purchasing anything that's more than 30 days old. Once beans reach a month or more of age, oxidation begins to occur. Oils also start to break down, and there will be a sudden decrease in overall taste quality.
  • Source High Quality Beans
    This isn't to say you should only drink mugs of Jamaican Peaberry, a rare and expensive coffee, just that you should be mindful of your purchase. Single origin beans, adorned with the Rainforest Alliance logo, is one of your better choices if you are stuck purchasing coffee from the grocery store. This could be from Brazil, Africa, Hawaii, etc. A single origin simply means it is not a cheap blend, and the beans originate from one place – this means money well spent.

Don't Forget the Water

  • Don't Heat Water Beyond 200º F
    Burning and scolding your grounds is one of the biggest mistakes you will make. For this reason, you should ensure your water never heats beyond 200 degrees Fahrenheit, in order to avoid damaging the coffee. When pouring hot water, do it slowly, and preheat the container when possible.
  • Only Use Filtered Water
    The quality of your water source is probably one of the main reasons for unsavory coffee. Various contaminants and minerals impart flavors that cause hints of bitterness, creating a sour concoction that typically ends up going down the drain. By filtering your own tap water, you have more control over what ends up in the foods and beverages you and your family consume – your coffee should receive the same consideration.
    Plus, considering coffee is more than 97% water, filtered water is simply a no-brainer. Please also ensure you avoid distilled water, spring water, and any other type of bottled water as much as possible. Aside from contaminants and minerals originating from the water source, plastic bottles have a tendency to leech micro plastic and chemicals into the contents.
  • Descale as Necessary
    Hard water can begin to cause a buildup in a hurry. And, in most cases, you won't begin to notice a problem until you aren't able to brew coffee in a timely fashion. For example, if you are using a tea kettle to heat water, you may not consider cleaning it on a regular basis. Eventually, minerals and calcium have caused a buildup, and you discover a white substance caked along the inside – this is hard scale buildup.
    You can remedy this problem at home, though, just be sure to do it at the end of a day before the kettle is needed again. Simply mix up a 50/50 blend of white vinegar and filtered water. Bring your kettle to a boil, and allow it to rest until the water comes back down to room temperature. Once it is done cooling, pour out the contents, and boil a pot of water. If you still find there is leftover residue that won't come off, repeat the process.

Water Filter Options

When it comes to locating the best option for filtering your tap water, you may be pleasantly surprised at the options available. From inline water filters, to under sink units, and even Reverse Osmosis machines, there is no shortage of designs. Most families, however, appreciate the space saving convenience set forth by a water filter pitcher, as well as the affordability. With so many brands to choose from, it can become time consuming, and frustrating to determine which is your best bet. We have gathered our top filter choices, in order to help you start brewing better tasting coffee from home.

Waterdrop Chubby Water Filter Pitcher

Waterdrop's Chubby Water Filter Pitcher is one of the top pitcher style modes of water filtration. Fitting perfectly in your fridge, you can enjoy up to 200 gallons of water per filter replacement, before ever having to worry about inserting a new cartridge. This efficient filter is great for budget minded folks, who are in need of filtration for tap water. Waterdrop utilizes lead-free and BPA-free construction materials, as well as the accent of a beautiful wooden handle. Aside from sleek looks, the Chubby Water Pitcher is NSF 42 and 372 certified, so you can rest assured you have purchased one of the best filter pitchers out there. When you need the convenience of a water pitcher, paired with the serious removal of arsenic, lead, fluoride, and other contaminants, Waterdrop should be at the top of your list. Japanese sourced activated carbon works hard to ensure you aren't consuming dangerous contaminants, and can get back to enjoying flavorful coffee, again.

Brita Stream UltraSlim Water Filter Dispenser

Brita has become a household name over the years, and it is easy to obtain. When you need something to get the job done, Brita works well at removing unwanted flavors and odors typically arising from municipal water sources. This water filter pitcher is efficient at removing chlorine, which has a negative affect on coffee, tea, and homemade juices. If you are short on space, the Brita UltraSlim fits easily into the refrigerator door, at just 4.4” in width. Measuring at 10.25” tall, and 16” deep, the Brita Stream UltraSlim holds 25 cups of water in the container. Fill your filter pitcher less often, and stop worrying about ruining your morning coffee. With a Brita filter, you will be enjoying tasty coffee with regular filter replacements, all year long.
Do you know what is in your drinking water? There are over 100 trace contaminants in the average United states drinking water source. Some of these contaminants include arsenic, lead, radionuclides, and other chemicals. You may even find lead in the drinking water from corroded pipes in some areas.
The EPA does regulate some of the contaminants by ensuring water suppliers filter them out; however, some are not. As a result, some sediments, bacteria, and chemicals don't get removed from your building's water supply, but there is a way you can have cleaner and clearer drinking water in your home.
If you have stumbled upon this buyers guide, you are probably already worried about your home's water quality. What can you do to better your drinking water supply? Is there a way to make safe, clean, and healthy drinking water? Yes! Through reverse osmosis.

What is Reverse Osmosis?

The concept of reverse osmosis is the process of removing contaminants from unfiltered water. High pressure forces the water through a semi-permeable membrane to push the water from the side with the most contaminants of the RO membrane to the side with the lesser amount of contaminants to deliver clean drinking water. The semi-permeable membrane consists of small pores that prevent contaminants from flowing through the faucet, and only water molecules can. The waste that is left is called brine, and the water delivered is also called permeate.

What is a Countertop Reverse Osmosis System?

Countertop reverse osmosis system is the combination of various stages of reverse osmosis. The water gets cleaned straight from your kitchen countertop in a single compact system. They are so effective that they can remove 99% of dissolved solids from the drinking water. It will not only remove the contaminants but have a better taste and smell.
Reverse osmosis systems usually get installed underneath the kitchen sink, but you will find that countertop reverse osmosis systems are becoming a trend. Not only are they a popular choice among homeowners, but they are thorough, and you won't need to make a hole in your sink or countertop.

How Does a Countertop Reverse Osmosis System Work?

Countertop reverse osmosis water filters have less hardware, and there is no filtered water storage tank, meaning it is a direct flow system and relies on incoming water pressure.
There are two types of Countertop RO systems. It could have a tank that would need to get filled from the portable container, or water comes from the faucet directly. As the water flows through the system, it will go through various filtration stages to produce clean drinking water. Every system will have its own process, but most have the following stages:
  1. Introduce the water: Water will flow through the sediment pre-filter to remove all the dust, rust, sand, and all other sediments that might be found in the water.
  2. Filter: The filter will absorb all the chlorine and chemicals out of the water removing the odor and bad taste.
  3. Reverse osmosis membrane: Next, the reverse osmosis membrane will remove 99.9% of dissolved solids by force.
  4. Carbon filter: Any sediment left will get filtered out of the water and is known as the post-filter.
  5. Alkaline remineralization filter: Not all countertop RO systems have this, but those that do will reintroduce healthy minerals back into the drinking water before it comes out of the faucet.

Advantages of Countertop RO Water Filter

There are various advantages of the countertop RO systems. These include:
  • Reverse osmosis is a proven method of cleaning water and can remove almost all the contaminants from tap water.
  • Filters water quickly.
  • The countertop RO system is easy to install, and there is no need to make a hole in your counter for installation.
  • The system is portable and can get used in an RV, apartment, even a tiny home kitchen.
  • They are low maintenance and affordable.
  • Since there is no water storage tank such as those in the under-sink RO water filter, you immediately get water straight from your faucet.

What Are the Best Countertop Reverse Osmosis Systems?

Let’s explore the three best countertop RO systems on the market. Which one will suit your needs?

Waterdrop M5 Countertop Reverse Osmosis Water Filtration System With Portable Water Pitcher

The Waterdrop countertop water filter needs to get connected under the sink to the fresh and wastewater plumbing. If you have a fancy kitchen faucet, this system is the best option for you because it won't interfere with the faucet.
Some key features:
  • There is an all-in-one 5-stage filter
  • Non-electric pump
  • The system is quiet
  • Get up to 550 gallons of water (approximately 12 months) before the filter has to get replaced
  • Easy installation
  • 80oz BPA-free pitcher that can get removed and refrigerated
The great thing about the pitcher is that it will automatically refill with fresh drinking water when you put it back into the filtration system.
The Waterdrop water filter has two layers of sediment membranes, an RO membrane, a carbon block, and a post-activated carbon block layer. More than 1,000 contaminants will get removed, including sand, rust, heavy metals, and chlorine.

Alcapure Countertop Reverse Osmosis Water Filter

The AlcaPure can remove more than 99% of contaminants, including lead, mercury, chlorine, arsenic, and much more! It works using a four-stage filtration system to effectively cleaning drinking water.
Key benefits of AlcaPure:
  • 4-stage filtration system
  • Zero water waste
  • Easy to install and replace the filters
  • Alkaline water remineralization to put back healthy natural minerals into the water

Crystal Quest Portable Reverse Osmosis System

The Crystal Quest filtration system is impressive. Not only can it produce more than 2 gallons per hour, but it connects easily to a sink faucet. Use it in a hotel, RV, or anywhere there is a water source.
Key features of Crystal Quest:
  • 10-stage filtration system
  • Since it doesn't use electricity, it is portable and can get used almost anywhere
  • No installation required
  • Filter more than 50 gallons of water every day
  • Highly affordable and low maintenance costs
In recent times, the quality of water supplied to homes has been an enormous concern. Municipal water is treated to make it drinkable. However, the water may get contaminated by groundwater seepage before delivery to a residential plumbing system.
Another concern about the quality of water is how old pipes can increase toxicity. Although it may be challenging to change municipal pipes, you can replace the pipes in your home. Older houses tend to have old and outdated pipes, and they are likely to cause health hazards for a household.

What Are The Present Conditions?

In the United States, the underground pipes are pretty outdated. They have gone past their estimated lifeline, thus, posing a severe threat. The American Waterworks considers 44% of the water infrastructure in America below standard. In addition, the American Society of Civil Engineers reports approximately 240,000 water breaks every year. Consequently, there is a shortage of clean water delivered to people, thus affecting the health and safety of the country's population.
Flint, a city in Michigan, used the Flint River as a drinking water source in 2014. During this period, a new water pipeline to Lake Huron was under construction. However, the River had two sources of contamination that caused adverse health effects for people. The first contaminant was industrial and sewage waste, while the second contaminant was lead pipes. Lead pipes introduce neurotoxins into the water when they corrode. You may ask, why use lead pipes? Lead pipes were more durable than concrete or iron. Also, they were more malleable; therefore, they were used widely in the 19th century.
Lead exposure can cause many health problems, including learning disorders in children and stunted fetal growth in pregnant women. Lead exposure can also hinder the function of the kidney, nerve, and heart in adults. Fortunately, in 1986, the clean water act was enacted to address the side effects of lead poisoning and also establish acceptable blood levels for lead.

How Do Aging Pipes Affect People?

Corroded pipes in the home can introduce metal contaminants into drinking water, causing health problems for homeowners. Corrosive water not only poses a health hazard but also constitutes a nuisance. There are even instances where extreme corrosion can damage your metal plumbing system.
Aging pipes can affect overall human wellbeing in several ways, including:

Introduction of Heavy Metal Contaminants

Aging pipes may leach heavy metals like dissolved lead, iron, copper, cadmium, and other toxic metals into drinking water. Heavy metals can discolor sinks and bathroom fixtures. In addition, metal contaminants can give water a metallic taste.
When the body ingests excess copper, it can cause gastrointestinal issues such as diarrhea, vomiting, nausea, and stomach cramps. Furthermore, people with Wilson's disease have higher sensitives to the effects of copper ingestion. Lead, on the other hand, is a much more toxic metal. This heavy metal can cause adverse health reactions both in children and adults. The most dangerous fact about lead is that it accumulates in the body till it reaches a toxic level. People can absorb lead through the digestive tract and lungs. Also, the blood can transport lead throughout the body. The concentration of lead in the body determines the severity of its poisoning.
Effects of lead poisoning in the body include damage to the nervous system, brain, kidneys, and even the red blood cells. Furthermore, lead poisoning can hamper the mental and physical development of children, sometimes causing irreversible damage. Lower IQ levels, behavioral problems, and shortened attention span are also effects of lead poisoning.

Virus and Bacterial Contamination

There are about 240,000 main water breaks every year across communities in America. Water breaks cause the waste of trillions of gallons of water. Furthermore, the breaks induce the introduction of contaminants into the water. Sewer pipes leakages and water breaks can cause the leaching of fecal matter into water bodies like rivers and aquifers. Aging water treatment plants may not have the capabilities to remove parasites, bacteria, and endocrine-disrupting substances. These contaminants can cause drinking water to smell like rotten eggs or sewage.

Clogged Piping

When heavy metals get leached into the plumbing system, it may cause pipe clogging. When pipes get clogged, it automatically decreases water pressure. You may need to wait for a longer time to fill up appliances that require water for operation, especially your dishwashers and washing machines. Also, clogged pipes can affect your water heater.

Higher Water Bills

The aging water infrastructure in America requires more than $1 trillion to revive the system and maintain the current water service level for the next 25 years to satisfy the growing population. In years to come, Americans who already pay for the water service will likely pay higher bills to accommodate the cost of improving the water infrastructure. There has been an increase in water bills in recent times, primarily because of the expenses incurred during water breaks.
PIC: pipe maintenance

What Can You Do If You Suspect You Have Contaminated Water In Your Home?

If you are not sure of the age of the pipes in your home or you suspect contaminants, it is best to test the water. Apart from corroded pipes, there are other reasons for the poor quality of water. Getting a water treatment specialist to test the water can let you know the type of contaminant present. In cases where your pipes are in good condition, a water systems specialist will recommend a water filtration or purification system installation.
The two types of water filtration systems that can effectively remove contaminants include a whole-house water filtration system and a reverse osmosis system.

Aquasana EQ-600-AMZN

The Aquasana EQ-600-AMZN is a whole house water system that treats water at the point of entry. It eliminates 99.9% of heavy metals, including cadmium, copper, and lead. The system is also effective in filtering out volatile organic compounds, sulfur, pesticides, radionuclides, and most sources of water contaminants.

Waterdrop D4

This system is smaller and more compact than a whole house water filtration system. Waterdrop D4 is a reverse osmosis water filtration system that treats water at specific points in the home. The primary benefit of this system is that it can effectively filter out heavy metals such as copper, lead, iron, and aluminum. It can also filter out other contaminant sources like fluorides, chlorine, arsenic, pesticides, and herbicides. Another benefit of this reverse osmosis filtration system is that it is compact enough to fit under a kitchen sink and provides over 400 gallons of clean water daily.
Are you in the market for an under-counter multi-stage filter for your home? Then, this post is for you. We have researched and identified the best options you should consider, emphasizing the various filtration stages and processes, costs, upsides, and downsides of each recommendation.
So, without wasting time, let’s get to it.

You pay more for more stages.

It is pretty standard: how much you pay for a filtration system depends on the number of filtration stages. The more the stages, the number of components involved, including fittings, cartridges, housings, and pipes. That is why you pay more for an advanced filter system than the basic models.
Furthermore, more filtration stages translate finer filters. For instance, you can have a 0.04-micron filter in a two-stage under the sink system and a 0.005-micron filter in a five-stage reverse osmosis system. The latter filtration system is finer and will eliminate more impurities, including those with smaller molecules.
In essence, what you get depends on how much you pay. That said, there are excellent multi-stage filters out there at reasonable prices. Some even come with a free installation service. For example, $300 can get you a three-stage filter, and you get a free installation service and a free designer complementary tap to make the unit whole. However, you may need an experienced technician to install the entire unit, and that takes between 30 minutes and 1 hour, after which you can enjoy fresh and clean water.
But that is only the upfront cost. In addition, you should factor in long-term costs for maintenance and replacement parts. For instance, you need to replace the filter cartridges of the system every 12 months to ensure optimal performance. While the housings, pipes, and fittings may also require replacements, the overall warranty usually covers them. That is why you must ensure you get a warranty that covers replacements and future repairs when buying your unit.

There are various water purification stages.

With filtration stages and water filter costs out of the way, let’s discuss the various stages of filtration. The filtration stages in a unit determine how contaminants are removed from the water. You can use this information to ensure you get the best value for your money.
There are three primary filtration stages;
The first stage is where the system removes sediments and dirt. It is the first stage because these contaminants are the largest and easiest to remove. Basic filters are effective against sediments, dirt, sand, and other causes of turbidity. It also improves the appearance and taste of water, making the job much easier for the subsequent stages of filtration.
In a three-stage filtration system, the second filtration stage is where contaminants like heavy metals, chlorine, and others leave the mix. In more sophisticated systems like five-stage reverse osmosis systems, chlorine removal takes a separate stage because it protects the ultrafine membrane filter required for the subsequent stages.
The middle or second stage is where the main purification happens. The elimination of the small harmful particles takes place in this stage, including zinc, mercury, lead, iron, copper, cadmium, aluminum, and chlorine. Some filters are also effective against Volatile Organic Compounds (VOCs) and microorganisms like Cryptosporidium and E. coli, thanks to the 0.005-micron rated ultrafine membrane.
PIC: chemicals
The last stage takes care of the taste and smell. After all, what is filtered water without a great taste and refreshing feeling? The last stage of filtration removes unfavorable odors and tastes, ensuring that your filtered water is safe, healthy, and tasty.
The filtration process is quite simple and direct. Once the sediments and dirt are out of the line, the focus shifts to chlorine and heavy metals. Then, the odor and taste aspects are sorted, and you have quality filtered water coming out of your filtration system’s faucet.

Filters’ output and lifespan.

If you eventually get a decent $300 multi-stage under-the-sink filtration system that comes with free installation, parts, and labor, how many years can you get out of it? That is another important consideration when buying a filtration unit.
Fortunately, you can assess how long or durable a filtration unit will be before purchase. Start by checking where the parts – tubes, fittings, and housings – were made. A durable unit will have strong enough parts to withstand high pressure, even with continuous use. We recommend filtration systems with parts made in Australia, UK, and the USA. Locally-assembled units also tend to have little or no issues with compatibility.
The next port of call is the output of the filtration unit. You need to be sure the unit has an output that can serve your entire family, even during peak use like family gatherings, post-breakfast or dinner, and similar situations. Averagely, we drink two liters of water daily. If a family consists of four people, the daily water requirement would be 8 liters. That, alongside the water for other domestic uses like washing, bathing, and cooking, can make it up to 50 liters daily.
The good news is that most under-counter multi-stage filters out there have an output of 100+ liters of filtered water daily. That will be sufficient for small families and even mid-sized families with minimal water usage.

Recommended Under Counter Multi-Stage Filter Systems

Waterdrop Triple-Stage Water Filtration System

Unlike single-filter filtration systems, this under-counter filter from Waterdrop is effective against more contaminants. It is equipped with more filters, all with longer lifespans. There are three filters in this filtration system, each delivering pure, filtered, and refreshing water at all times. The PP cotton is effective against rust, sand, large particles, and other contaminants. The granular activated carbon filter is effective against bad odor, taste, and chlorine. The third filter -the natural carbon block and KDF filter – ensures pollutants do not accumulate to distort the taste of the filtered water.

Aquassana AQ-5300+ Triple-Stage Kitchen Counter Filtration

With this system, you get 0.5 gallons of filtered water every minute. If you want instant purified water on request, this filter system performs better than traditional drip filters. It reduces up to 99% of over 70 contaminants in tap water while restoring beneficial minerals that improve health. However, this system is not effective against Total Dissolved Solids.

Finally…

We are confident this detailed guide into multi-stage under-counter filtration systems has equipped you with all the information you need to make the right choice when next you are shopping for a suitable filtration system for your home.
Remember, filtered water is the best drinking water for you and your family.
When you require the ability to filter water from a specific faucet, a point-of-use (or POU) purification system may be your best bet. This type of filtration works by connecting directly to the inlet of a tap or faucet in order to filter out contaminants, and further reduce elements that may be detrimental to your health. In turn, you are provided with safe, healthy drinking water all from the convenience of your kitchen sink, or any other chosen faucet. Because this mode of water filtration is rather inexpensive, as well as portable, they are very popular for households across the world. If you are in the market for a point-of-use faucet filter, we have laid out the top rated kitchen sink water filters below.

How Water Faucet Filters Operate

Essentially, faucet water filter connects to a water faucet, such as the one on your kitchen sink. Contrary to popular belief, this type of water filter routes water through a filter faucet, through rather than through the faucet in your kitchen. How does filtration work?
  • Water filtration begins through the removal of sediment. Typically, a non-woven screen surrounds a filter cartridge, which is utilized in order to catch debris. Small and large particles are caught, such as sand, rust, dirt, and more.
  • The second step to water filtration involves an activated carbon block. A single granule of carbon is covered in countless little pores, which catch and remove various chemicals through absorption. When the carbon is allowed more contact time with the tap water there is a higher rate of chemical absorption. This is where a slightly slower flow rate comes in handy.
  • Additional contaminants are removed through additional layers, thanks to a final step of filtration. Although a screen and carbon block work well together at removing various contaminants, other elements such as heavy metals may flow on by. A chemical removal process helps to remove anything that may have been left behind.
  • The water filtration quality is set by a public health and safety organization, known as NSF International. Their goal is to improve human health on a global scale, accomplishing tasks through the testing and certification of products such as water filters and purification systems. Standards are set and adhered to by certified products, which brandish the NSF/ANSI 53, or NSF/ANSI 42 logo – depending on the standards adhered to. In order to meet various guidelines, the NSF ensures standards remain stringent, and products maintain overall quality. Consumers may feel confident in water filters certified by the NSF, mostly due to the reduction of impurities, or the removal of contaminants known to cause adverse health effects.

Benefits of Point-of-Use Water Filters

The water faucet filter, or point-of-use filter, provide many benefits to consumers worldwide. When you are looking for something dependable, here are just a few of the benefits you may come to expect from a point-of-use filter.

Overall Convenience

Enjoying filtered water on demand, through a point-of-use filter, is possibly one of the best pros of a faucet filter. Not only do you decrease your dependency upon plastic water bottles, but you also do your part in helping the environment. Utilizing tap water is one of the easiest ways to pitch in on helping with the global crisis. Aside from going green, filtered tap water means fewer trips to the grocery store to pick up packs of water. Our dependence upon plastic has reached severe proportions as a planet. Millions of plastic water bottles are purchased on a weekly basis, further worsening our climate crisis. By swapping to a home water filtration system, you can do your part in eliminating plastic use one household at a time. You will ease the stress on the earth, and save money at the same time.

Safe & Clean Drinking Water

Providing your family with safe, clean drinking water brings peace of mind in an uncertain world. Not only will you enjoy pure tasting water, but it will also be free from dangerous contaminants such as heavy metals, herbicides, pesticides, and much more. This will go great lengths in improving your immune system.

Simple Installation

Installing a faucet filter is so easy, you can do it yourself. When you don't have the time, it's also easy to hire a professional. By investing a mere 5 minutes to install it under the sink, your family will be enjoying filtered water on demand. A simple tools are all it takes to get the job done.

Top 5 Water Faucet Filter Reviews

Waterdrop FC-01 Faucet Water Filter

Waterdrop's faucet filter utilizes activated carbon, through an ACF (or activated carbon filter) to remove contaminants. This method works well to remove fluoride, chlorine, and lead, in order to improve the odor and flavor of your water. This design isn't new, just an improvement in overall quality. Waterdrop took a tried and true method of water filtration, and made it longer lasting for fewer replacements. Additionally, Waterdrop gave their faucet filter a sleek appearance, with a lifespan of 320 gallons. Basically, you can expect somewhere around 3 months of pure water for your household before a filter replacement is required. Some users have reported a lifespan of 6 months before a replacement.

Wingsol Faucet Water Filter

Wingsol's Faucet Water Filter features a stainless steel body and tap for a sleek, modern look. When you want a product to last for many years, Wingsol's crack-proof construction is one you can have confidence in. Users report satisfaction after months of use, with filtered tap water free of chlorine, mercury, lead, sand, dirt, and more.

Instapure F2 ESSENTIALS

Instapure's F2 Essentials is backed with a NSF/ANSI 42 and 372 certification for the highest levels of confidence. Products featuring a NSF certification provide a name you can trust, by adhering to stringent standards. The F2 Essentials faucet water filter is capable of removing 99% lead, VOCs, 97% chlorine, and much more. Overall, consumers notice a marked improvement in the taste and smell of their tap water with this filter. Installation is easy, and no special tools are required. Homeowners will enjoy 2 to 3 months of filtered water, or 200 gallons of water, before facing replacements.

JONYJ Faucet Water Filter, 304 Stainless-Steel Filtration System

The JONYJ Faucet Water Filter features food grade stainless steel, for optimal reliability. Efficient at removing mercury, arsenic, fluoride, lead, and more, this faucet water filter provides hundreds of gallons of water before replacement. Provide your family with top notch purified water, and worry less about the drinking water you consume at home.

DuPont WFFM100XCH Premier Faucet

DuPont's WFFM100XCH Premier Faucet Filter provides a filter capacity of 100 gallons, for 2 to 3 months before replacement is required. This model is efficient at reducing various contaminants, such as chlorine, lead, mercury, and sediment like rust, sand, and more. This faucet water filter is a great choice for individuals in a smaller household, where the demand is much smaller than large households.
Biology taught us that about 60-65% of the human body is water. The body stays replenished when you feed it with sufficient drinking water. The tap water quality in some cities is great, while others only get a subpar quality of tap water. The presence of heavy contaminants in your tap water may have considerable effects on your body consumption. Likewise, drinking filtered water may confer significant health benefits to your body. This blog examines both sides of the divide, as you will find out in due time.

Filtered Water vs. Unfiltered Water – Which is better?

Unfiltered Water

There are several disease-causing microorganisms in unfiltered water. You may also have heavy metals like lead and mercury or environmental chemicals depending on the water source. The key reason for filtration is to eliminate these chemicals, heavy metals, toxins, and bacteria in water, which may have found their way through mining, industrial, and agricultural activities.
According to the Environmental Working Group (EWG), there are many various contaminants in our water. Therefore, despite the government’s claims that tap water is fit for use, it is not entirely safe for consumption. The obsolete drinking water standards are a vital reason for the unsuitability of tap water for drinking. Science has proven that the water subjected to these standards is contaminated and can harm developing fetuses, infants, and young children.

Filtered Water

Filtered water remains the best water to drink. The health benefits are immense. For instance, it is free of the harmful contaminants in unfiltered water that cause severe health complications like cancer and neurological malfunctions. Drinking filtered water protects you from these risks and helps you stay healthy.
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Why Drink Filtered Water?

Let’s find out what the health benefits of drinking filtered water are:

It is free of contaminants.

There are no harmful chemicals or similar contaminants in filtered water. For example, a reverse osmosis filtration system removes up to 99% of contaminants in tap water. These include heavy metals like hexavalent chromium, cadmium, iron, copper, lead, and arsenic, pharmaceutical and industrial products like hormones and pesticides, PFOA (Perfluorooctanoic Acid), PFOS (Perfluorooctane Sulfonate), chloramine and chlorine, particulates, and sediments.
Unfiltered water contains arsenic – a dangerous carcinogenic that causes severe diseases in man. Aluminum is another harmful contaminant present in poorly filtered water, which causes skin problems, hyperactivity, and liver diseases when such water is repeatedly consumed.
People employ water filters to eliminate these contaminants, making the water safer and fit for drinking. Drinking this healthy water protects you from the risk of cancer and other dangerous diseases caused by the toxic elements of unfiltered water.

It reduces limescale.

If you find hard layers right under your water while boiling, then you have found limescale. The amount of limescale in tap water is considerably high for some areas. Limescale is also present in some brands of bottled water. Fortunately, you can get rid of limescale in your water by getting the right filters – another reason to filter your water.

It helps to absorb the important nutrients.

Ensuring your body does not miss out on essential nutrients is another reason to drink filtered water. Unfiltered water with a host of contaminants forces your body to work harder to expel these contaminants naturally. Therefore, the cells’ nutrient absorption rates will drop significantly.
On the other hand, filtered water is free of such contaminants, which means your body can absorb minerals efficiently and stay healthy. Filtered water also boosts your metabolism rates, helping your body perform optimally. More importantly, you are encouraged to drink more water if you know the benefits you get from such action.
A faster metabolism helps in weight loss. So, if you are keen on dropping a few pounds, you are better off with a proper full-home filtration system that delivers filtered water at all times.

It helps your skin.

Proper hydration comes with a host of skin benefits. Drinking sufficient filtered water every day helps your skin. While chlorinated water deprives your skin and hair of natural oils, filtered water ensures your skin stays healthier, your nails stronger, and your skin softer. So, rather than focusing on cosmetic products, a water filtration system can be the secret ingredient to your smooth and shiny skin.

It helps with detoxification.

We consume more snacks, chemicals, and other toxin-containing food items every day, making detoxification an important necessity. However, you can help your body detoxify better and faster by consuming filtered water. Aside from ensuring more toxins are not added to your body, drinking filtered water provides your body with the necessary nutrients it needs to function optimally.

The Best Water Filters For You

Waterdrop D4 Reverse Osmosis Water Filter

Here are the key features of the Waterdrop D4 Filter System;
Advanced Filter Structure – With a modern design and innovative filtration technology, this filtration system delivers an optimal filtration performance at all times. The 5-in-1 composite is efficient and ensures the best filtration effect.
Compact Size and Stylish metal faucet – At just 12.44-inch height, this reverse osmosis system is elegantly designed to be compact. It is tankless, which means it requires only a little under sink space. There is also a stylish faucet with a metal finish that delivers a fast and consistent water flow.
Cleaner and safer filtered water – The precise design has an integral waterway setup that works with no connectors. Therefore, there is no risk of water leakage or bacterial infection in your filtered water.
Seamless and fast replacement – If the filter in this reverse osmosis water filtration is due for a replacement, all you need is to open the front panel, detach the expired filter, and slot in the new replacement filter. It is as easy as that!

Home Master TMAFC-ERP

The Home Master water filtration system is one of the best options out there if you can pay the premium price. This seven-stage reverse osmosis under sink filter removes impurities from your tap water and restores beneficial minerals like magnesium, calcium, and others. In addition, the lifespan of the filter is impressive – it is only due for replacement after one year or 2,000 gallons of filtered water. Finally, the system is easy to install and use, requiring only minimal maintenance.

LifeStraw Home Pitcher

You can easily mistake this home pitcher with the classy glass pitcher you see at dinner parties. But they are different. LifeStraw, as always, emphasized its selling point of products personalization in this product. This home pitcher is small yet efficient. It filters water directly from natural sources like streams and rivers, removing harmful contaminants like herbicides, pesticides, heavy metals, microplastic, parasites, and bacteria.
Are you going on a camping trip soon? Then, the LifeStraw home pitcher is a must-have. It is portable enough to slot into your backpack and powerful enough to ensure you never run out of drinking water on your trip.

Is there a filter for hose water?

The major role of water filtration is to protect your health and wellbeing by getting rid of harmful carcinogens and toxic contaminants in your tap water. With a premium whole house water filter, you can reduce contaminants in your tap water without missing out on the beneficial minerals your body needs to perform optimally.
Most water filters are simple and user-friendly. You can easily install, use, and maintain them. Replacements are also often seamless – follow the manufacturer’s guidelines, and you are good to go!
The buzz around organic food is not a coincidence. These foods are safer, often more nutritious, and better-tasting than the non-organic options. In addition, the environment – plants and animals – stands to benefit more from organic food production. But there are a few downsides of organic foods. For instance, it costs significantly more, so most people prefer to home-grow their organic food.
Organic gardening means growing your organic foods by yourself. It is all about planting without using synthetic pesticides or herbicides. You must keep all forms of chemicals and contaminants away from the plants in your organic garden. That is easy, right? But what about the irrigation water?
Irrigation water – either tap or well water - often contains harmful chemicals. This is where the need for a hose water filter comes in!
PIC: well water

Is chlorine present in water from the hose?

Chlorine is most likely in your water if it comes from the public municipal plant. As a popular disinfectant, chlorine is often used in water treatment to eliminate harmful pathogens.

Is there a filter for hose water?

Yes, there is a hose filter specially created for hose water. There are different models on the market, and all you have to do is attach them to your garden hose. The filtered hose water is the best for irrigating your garden and organics because it is cleaner and free of chemicals or contaminants.
The filter gets rid of chlorine, chloramines, VOCs, pesticides, and herbicides. If you are in the market for the best hose water filters, we have some recommendations for you below.

Top 4 Hose Water Filters of 2021

1. Waterdrop RV Inline Water Hose Filter

Most hose filters out there rely on a single filtration stage to remove impurities. But this upgraded composite filter from Waterdrop has multiple filter materials, including KDF, GAC, and resin. Hence, it provides a multi-stage, efficient filtration that gets rid of heavy metals, sediments, mercury, lead, iron, magnesium, cadmium, aluminum, chlorine, and others.
The filtered garden hose water formula is of high quality, with the infusion of ion exchange resin. The 5-micron filtration accuracy makes sure your filtered water doesn’t leave white spots on your plants. It also protects the paintwork of your car. Likewise, the filtered water retains essential elements like nitrogen, phosphorus, and potassium to keep your plants healthy.
This garden hose filter will conveniently meet most of your outdoor water needs, including swimming pools, pet bathing, gardening, car washing, and others. It is compatible with ¾” garden hose thread and your garden’s mist cooling system.

2. Camco TastePURE Water House Filter

There are many reasons to love the Camco TastePURE Carbon Water Hose Filter. First, it combines a durable activated carbon filter with a 100-micron fiber barrier to deliver an efficient filtration process. Second, it sports a wide-body and great inline design that ensures a consistent and fast water flow – an output of one gallon of water per minute.
You can trust this filter to protect your plants and keep them healthy. It gets rid of chloramine and chlorine in your feed water, which are present due to the water treatment process at the municipal plant. It is also effective against aluminum, lead, heavy metals, mercury, hydrogen sulfide, and other impurities that may harm your plants.
Finally, the Camco TastePURE Water House Filter protects both your plant species and your family from the harms of contaminated water.

3. LOVHO Sediment Garden Hose Filter

We have included the LOVHO Sediment Garden Hose Filter on our list because of its price. It is one of the most affordable options out there. It is designed to work with your garden hose and pressure hose, with a maximum power output of 80 psi.
It is made of stainless steel and measures 0.75 inches each for both the male inlet and female outlet. The manufacturers recommend using this tap water filter under a temperature of 140 degrees Fahrenheit for best results.
If your pressure washer pump is unknowingly damaged due to a worn-out filter or large unfiltered sediments, a water filter can help you prevent future damages. Fortunately, the LOVHO sediment garden hose filter can effectively remove these sediments, protect your washer pump, and improve your gardening experience.
It also ensures zero leakage around the pipe joint.

4. AQUACREST RV Inline Water Hose Filter

The filtration process in the AQUACREST RV inline water hose filter is specially designed to provide you with safe and healthy water for garden use. It is equipped with a 20-microns rated Granular Activated Carbon and Kinetic Degradation Fluxion.
In line with its commitment to providing consumers with efficient products, AQUACREST ensured this hose filter could effectively eliminate chlorine, chloramine, and harmful chemicals from your garden water. It is also suitable for filtering water for car washing, ensuring your water is free from rust and sediments, and reducing water etches from the car’s paint.
Filtered water from this AQUACREST inline water hose filter delivers an improved detergent action and cleaning effect while keeping your water equipment safe. To start using this filter with your pressure washer, fix it at the inlet. You can also easily connect it to the water house, thanks to its anti-kinky hose protection design.

Finally…

Garden hose water filters are important if you want clean and healthy water for your garden use. They can effectively reduce chlorine and raise acidic water and iron, which may impair the plant’s absorption of water from the surrounding roots.
By improving the overall quality of the water in your garden, your plants’ root systems can stay unblocked. In the end, you record higher survival rates, with your plants staying vibrantly green all year and producing maximum yields during harvest.
Water filtration has come a long way since the early days of emerging water purification techniques. Many factors go into the overall design and manufacturing evaluation as to whether any given material is an effective mode of filtration. As one of the more effective routes, solid carbon blocks have dominated the industry of water treatment, especially in the POU (or Point of Use) category. This specific method of water filtration employees other filter tech, in addition to standalone treatment methods. Here we will address a few key buyer considerations in regard to sifting through suppliers, as well as overall filter specifications.

Filtering Water with Activated Carbon

There are two forms of activated carbon for water filtration, including: carbon block, and Granular Activated Carbon (or GAC). The difference between the two being particle size, with GAC granules ranging from 0.30-0.84 mm. Carbon block, on the other hand, provide a small mesh measuring anywhere between 0.045-0.18mm – or 7-19x smaller than GAC. As such, activated carbon has earned it's place filtering away contaminants, odors, and tastes from certain water sources. With large surface areas on filter material being the prime factor in contaminant absorption, it should come as no surprise to learn that activated carbon has an increased porosity on a granule level. With such a low cost, and wide availability, activated carbon makes an excellent options for a wide range of residential and commercial uses.

Why is Carbon Block the Best Choice?

Binding agents and activated carbon granules work together to provide the magic behind carbon block filtration. The binding agent works with the granules to maintain a static position that remains relative to one another. With filtration utilizing carbon block, granules of activated carbon are immobilized to prevent water from channeling, and promote a uniform performance. This is compared to GAC, which typically sits loosely contained in the bed of a pressure vessel, or enclosed cartridge. In the case of GAC, the product takes advantage of the path of least resistance, which proves useful in terms of water filtration. A carbon block, on the other hand, is formed to predetermined dimensions for cartridge use, with end caps forcing the flow of water through static pores.
Higher effectiveness, in terms of reducing overall contaminants, is achieved by carbon block via uniform pore structure held between individual carbon granules. A carbon block's pure ability to remove various contaminants is further increased as uniform pore structure plays a vital role in increasing contact time between filter media and tap water. This is due, in part, to the smaller particle size of carbon block, in addition to uniform pore structure. Compared to GAC, carbon block has a high level of effectiveness in a smaller package, at a similar flow rate. For this reason, GAC has been utilized as an effective treatment in terms of aesthetics contaminants, including: color, odor, and flavor. GAC, however, cannot stand up next to the additional effectiveness at removing volatile organic chemicals (or VOCs), cysts, lead, etc., presented by carbon block filters.
Carbon block is better enabled to reduce or remove various impurities in a shorter span of contact time, due to a higher density of carbon particles, as well as higher overall operating efficiency. Consumers also note minimal carbon fines, or carbon dust, produced by carbon block filtration, whereas GAC filters release a surge of black water upon initial use. The inherent static composition of carbon block minimizes the need for flushing or backwashing, virtually eliminating carbon fines during normal operation. Point of Use filtration products greatly benefit from applications utilizing either carbon block or GAC, with carbon block closing in the gap. As such, a more diverse product lineup is being created due to a demand for the small form factor set forth by the nature of carbon block.
The loose cartridge bed of a GAC filter presents ample room for the colonization of bacteria, a common problem among cheap filtration. Carbon block's advantages over GAC are further highlighted by a filter's inability to grow bacteria internally, due to carbon block's pore size. In all, carbon block is the superior choice in affordable filtration, simply because of it's effectiveness against contaminants, compact size, resistance to bacterial growth, low cost, and small form factor, not to mention its use of renewable resources.

Carbon Filter Design Specs

Utilizing Raw Materials

When looking into the raw materials utilized by carbon filter manufacturers, consumers would be pleasantly surprised to discover a wide variety of components. Nutshells, bituminous coal, and wood are just a few of the most common sources of carbon, with bituminous based coal being the most inexpensive and plentiful option. Coal-based carbons, however, run the risk of being contaminated with alarming levels of pollutants proven to leach into drinking water. Wood-based carbons, on the other hand, are well equipped to reduce the overall presence of specific contaminants, which is also renewable, and readily available. The overall timeframe for tree maturation can become a problem, though, as trees can take many years to mature. This presents nutshells, especially coconut shells, as the most ideal source of carbon for use in water filtration.
Why is coconut shell carbon the heavy hitter when it comes to filtering water? A higher porosity and greater surface area is provided by an innately higher volume of micropores found in coconut shell, especially when compared to other forms of carbon. In fact, consumers are given up to 50% more micropores through the use of activated coconut shell carbon, than bituminous coal based activated carbon. High porosity and greater surface area enables coconut shell carbon to maintain a greater absorptive capacity, capable of absorbing small organic molecules (think VOCs here).

Objectives of Higher Filter Performance

When it comes to evaluating the overall performance of a carbon block filter, there are numerous considerations. The filter's target capacity is one of the top basic performance characteristics evaluated, which is defined as the gallons of water filtered before replacement is needed. Flow rate is another aspect, determined by the continuous flow of gallons of water over a predetermined amount of time, typically gallons per minute. Additionally, the operating pressure required for the unit to perform appropriately as a filter, is measured in pounds per square inch, or psi. A micron rating, for example, represents a particles minimum size for optimal mechanical filtration, in order to provide the best indicator of overall pore size. This better informs consumers of the contaminant filtration capabilities set forth by various manufacturers and models.

Validating Overall Performance

Independent lab testing has been proven to be an invaluable tool in the overall evaluation of carbon block filter performance. Products are tested against the NSF International, and American National Standards Institute standards, in order to provide contaminant removal or reduction ratings based on the Maximum Contaminant Level of the US Environmental Protection Agency. These drinking water filter standards have steadily evolved beyond the simple measurement of contaminants, before and after filtration. These standards also dictate water characteristics, including temperature, pH, and levels of minerals such as magnesium, or calcium. Aside from structuring testing for measuring contaminants, etc., there are constraints surrounding the procedures of sampling and testing water, too. Such standards ensure adequate steps are taken to assure overall filter performance, especially when tested under the most realistic water conditions possible.

Guide to Carbon Water Filters & Reviews

Omnipure Inline Carbon Water Filter

This filter provides a respectable lifespan of 1,000 gallons, or one year of regular operation. For this reason alone, the Omnipure Inline filter provides the best bang for your buck, at a price you can afford. For the money, with low prices and annual filter replacements, you can't go wrong with an inline carbon water filter from Omnipure. The utilization of 3/8” quick fittings make this inline filter a quick install, with easy replacements on an as needed basis. However, due to a low flow rate (less than 0.6 gallons per minute), may grown into an irritating problem, especially when the demand for cold water is high.

iSpring 3-Stage Carbon Under-Sink Water Filters

There's nothing like the crisp and clean water produced by an iSpring filter – it's very characteristic. This is due to the three stages of filtration the US31 utilizes for the efficient removal and control of bacteria, parasites, arsenic, heavy metals, and lead. Overall, users can expect anywhere between 6 to 12 months of regular use before a replacement is required, depending on demand and water source conditions. However, for the money required, consumers would be paying a premium for the convenience of a second faucet in order to receive iSpring's benefits on demand.

Waterdrop WD-FC-06 Carbon Block Faucet Water Filtration System

When consumers need the convenience and function of the aforementioned brands in one neat package, the Waterdrop Water Faucet Filtration System is a notch above the rest. By simply screwing the unit onto the end of your faucet, carbon block made of coconut shell, goes to work improving odor and taste through the removal of chlorine, and various suspended solids. Remineralization media also imparts beneficial minerals crucial to longevity and good health. A lifespan of 320 gallons means the average user can expect up to 3 months of regular use, in a sleek package anyone will appreciate. Additionally, once the system is installed, users can simply swap from tap to filtered water all with the flip of a switch.