FAQ's - Ask the Water Guru

Bottled Water Tastes Metallic!

I have recently come to Australia and found that the bottled water (except for a few like Evian) have a strong bitter/metallic taste. Same goes for tap water. Why is that? Will that be removed by using your filters?

This post was submitted by Zeeshan.

Are essential minerals that make water healthy and fluoride left in the water after filtration?

This post was submitted by TIna .

How does Aquasana compare with Pure Water Filters?

This post was submitted by Debbie.

Does it remove aluminum?

My son was tested above range with aluminum and the only water I use for cooking and bathing is filtered through Aquasana.
He only drinks spring water.

This post was submitted by Esther Halpert.

How much water flows through the Aquasana filter per minute?

This post was submitted by Nicolene van der Merwe.

Does your AQ-4000 faucet filter remove copper?

This post was submitted by steve .

White Buildup in Kettle

Hello, The only water put into our stainless steel kettle is from the Aquasana water filter but there is scale in there, the same as when we used a much cheaper filter system. Can you explain where the scale comes from? Thank you.

This post was submitted by admin.

Does the Rhino take care of all the stuff that is found in our water report that I have included below?


This post was submitted by Victoria Minich.

Aquasana Water Filter Certification

Aquasana water filters are required to document the purity of the water they produce. This strict regulation allows consumers to accurately compare the performance.

The most stringent tests have been performed on the Aquasana products in California, USA. California has the strictest requirements in the States, with manufacturers required to have all promotional, advertising, websites and packaging materials reviewed by the Department Of Health for accuracy prior to certification.

The California Certification is one of the best ways to determine a product’s performance capabilities.

Aquasana Water Filters

Aquasana 4000 Countertop Water Filter
Certifications and Performance Data Sheets

Certificate of the Department of Health Services, California, USA, confirming that the AQ-4000 water filter has ‘met the testing requirements pursuant to Section 116830 of the Health and Safety Code’.

View the Aquasana Countertop Water Filter Certificate >>

Certified performance data sheet confirming that the AQ-4000 complies with NSF Standards 42 and 53, and is certified by the California Department of Health Services Drinking Water Treatment Device Program.

View the Aquasana Performance Sheet >>

Report from Underwriters Laboratories Inc. that the AQ-4000 reduces chlorine by 99% for a full 500 gallons.

View the Aquasana Chlorine Reduction Report >>

Report from Underwriters Laboratories Inc. that the AQ-4000 complies with ANSI/NSF Standards 42 and 53 – structural integrity.

View the Aquasana Structural Integrity Report >>

Aquasana Water Filters Aquasana Water Filters

Click here to visit the Aquasana Water Filter website >>

Whole House Water Filter Chlorine Reduction Test

The Rhino Whole of House Water Filtration system is certified by Underwriters Laboratories to NSF standard 42 with class 1 performance and has a 1,200.000 litre / 3 year capacity at 27 lpm. This means the system is certified to remove chlorine, odour, foul tastes and sediment. The Rhino produces non-detectable levels of chlorine for 12,000,000 litres – the highest certified capacity of any home water filter ever!

The Rhino will remove >90% of VOC’s and SOC’s as well as the chlorine.

Aquasana Water Filters

The Rhino Whole of House Water Filtration
Certifications and Performance Data Sheets

View the Chlorine Reduction Test >>

Aquasana Whole House Filters

Click here to visit the Aquasana Water Filter website >>

Health and Water

Healthy Water… is the #1 Ingredient For Healthful Longevity!
Reprinted with permission from Fitness Plus Magazine, December 2002

The importance of “healthy water” and where to get it may very well be the most beneficial health information any of us can learn. The simple fact that our body is over 70% water, tells us how extremely important its quality is.

Without an abundant intake of healthy, chemical free water… every other wellness effort is to a large degree in vain.

While every health and wellness expert will agree on the importance of “healthy water”, most have different opinions on its definition and source. The fact is that it’s no longer a matter of opinion. There’s now enough credible scientific data on the subject for a logical and reasonable conclusion.

The healthiest water doesn’t come from your tap, doesn’t come in a bottle, it doesn’t come from distillation or reverse osmosis… it comes from “selective filtration”.

All tap water in America contains trace levels of synthetic chemicals, heavy metals, parasites and/or chlorination by-products that pose significant health risks. We can either filter out these poisons prior to consumption, or we force our body to become the filter. Many have switched to bottled water under the false assumption that its’ purity is assured to be better than tap.

The truth is that bottled water is only required to be “as good as” tap… not better.

And the Federal guidelines that govern bottled water quality only apply if it is transported across state lines. Most bottled water is bottled and sold within the same state in order to avoid regulation. It’s an industry built on deception. Bottled water is currently the fastest growing and most profitable segment of the entire beverage industry. “Companies that market bottled water as being safer than tap water are defrauding the American public.” U.S. FDA

The old school of thought was that distilled and reverse osmosis water were the healthiest, also now known to be untrue. Both of these methods were designed over 40 years ago for industrial purposes as they are “demineralizing” processes. Once you strip the trace minerals from water, the pH drops and the water becomes aggressive or acidic. Water by nature will always seek to balance its pH. If we consume de-mineralized water, it will pull minerals from our body, primarily calcium, to seek that balance. There are several very credible research reports and books that stress the more recent opinion that long term consumption of de-mineralized water can in fact be dangerous.

Dr. Zolton Rona‚ author of The Joy of Health‚ states that “the longer one consumes distilled water‚ the more likely the development of mineral deficiencies and an acid state.”

Dr. Paavo Airola‚ cancer expert and author of “How to Get Well” and “Cancer… Causes‚ Prevention and Healing” also reports that “long term consumption of distilled wa er eventually results in multiple mineral deficiencies.” Two very negative things happen when we consume water that has been stripped of its natural minerals.

First‚ because demineralized water contains more hydrogen it is an acid with a pH below seven. Any time we consume an acid substance our body will pull minerals from our teeth and bones to produce bicarbonate in order to neutralize the acid.

Second‚ it has been proven that when our body fluids become more acid than alkaline the production of free radicals increases‚ causing increased cancer risks.

Many studies suggest that cancer cells can only grow in an acid environment. This theory seems to be supported by the fact that around the world the areas where people live the longest most disease free lives are the areas that have the most alkaline water‚ water with the highest mineral content. Neither of these processes are very effective at removing synthetic organic chemicals since all SOCs and VOCs are molecularly smaller and vaporize at lower temperatures than water.

The most recent and most effective technologies for truly healthy water are “selective filtration” systems that can distinguish between contaminants and trace minerals. They are also the most convenient, the most economical and produce the best tasting water.

Home water filtration is no longer a luxury… it’s a necessity!

Written by Charles Strand, author of the book “All About Water”, recipient of 17 U.S. patents for water purification technologies and President of Sun Water Systems, Inc.

Glossary of Terms

Although there is no universally accepted method for comparing air-cleaning devices, several investigators of portable air-cleaning units have expressed their results as a ”Clean Air Delivery Rate” or CADR. The CADR is the product of the unit efficiency and the airflow rate, and is a measure of the number of CFM of air it cleans of a specific material.

The DOP Military Standard is the standard set by the federal government to rate particle reduction by HEPA filters. This test rates high-efficiency filters by the percentage of 0.3 micron size particles of dioctylphthalate (DOP) smoke they remove.

HEPA Filter
HEPA stands for High Efficiency Particulate Arrested Filter, and like the name says, these filters are designed to remove 99.97% of all airborne pollutants 0.3 microns or larger from the air that passes through the filter (these include tobacco smoke, household dust and pollen).

Carbon, the sixth most abundant element in the universe, has been known since ancient times. Many natural substances of base materials are used to make carbon. The most common of these are wood, coal, lignite, and coconut shell. Amorphous carbon is formed when a material containing carbon is burned without enough oxygen for it to burn completely.

Activated carbon is the generic term used to describe a family of carbonaceous adsorbents with a highly crystalline form and extensively developed internal pore structure. Activation creates a fast internal pore network and imparts certain surface chemistries (functional groups) inside each particle. Thus activation gives carbon its unique filtering characteristics.

A pre filter is the primary layer of filtration that collects large particles before they reach the HEPA filter. Eliminating these larger particles, dust and hair extends the life of your HEPA filter. Occasional vacuuming of the exterior of the unit will help extend life of the filters. Frequent pre filter changes will also prolong the HEPA filter life.

When a gas or vapor is brought into contact with a solid, the solid takes up part of it. The molecules that disappear from the gas either enter the inside of the solid, or remain on the outside attached to the surface. The former phenomenon is termed absorption (or dissolution) and the latter adsorption.

There are many simple electronic devices that claim to clean the air in your home by making negative ions and ozone. The claim is accurate–they do make both ozone and negative ions, and they do clean the air in your home. However, that’s not the whole story. First, ozone may have the “fresh” smell that occurs after a thunderstorm (a potent producer of ozone), but ozone is a powerful oxidizing agent and chemical irritant that’s considered an environmental pollutant rather than a charming scent. The manufacturers are taking a nuisance effect and touting it as a “valuable feature.” Second, the negative charges emitted by these electronic devices attach themselves to dust, ash, pollen, and smoke particles and cause those particles to bind themselves to your walls and furniture. The air really does become cleaner, but every surface in your home becomes dirtier as a result.

Ozone, a lung irritant, is produced indirectly by ion generators and some other electronic air cleaners and directly by ozone generators. While indirect ozone production is of concern, there is even greater concern with the direct, and purposeful introduction of a lung irritant into indoor air. There is no difference, despite some marketers’ claims, between ozone in smog outdoors and ozone produced by these devices. Repeated exposure to ozone pollution may cause permanent damage to the lungs. Even when ozone is present in low levels, inhaling it triggers a variety of health problems including chest pains, coughing, nausea, throat irritation, and congestion. It also can worsen bronchitis, heart disease, emphysema, and asthma, and reduce lung capacity.


A micron is a unit of length equal to 1 millionth of a meter or .000039th (39 millionth) of an inch. Another name for micron is micrometer.

Particulate Matter Up to 10 Microns in Diameter (PM10)
The number 10 refers to the particle size measured in microns.
PM 10’s are widely considered the most dangerous to human health.

A standard developed for measuring particulate matter in a pre defined area.


Electrostatic units filter the air using static electricity have a static charge on the filter to allow airborne particles to “stick” to the filter, just like static-charged clothing sticks together.

Ion generators act by charging the particles in a room so that they are attracted to walls, floors, tabletops, draperies, occupants, etc. Abrasion can result in these particles being re-suspended into the air. In some cases these devices contain a collector to attract the charged particles back to the unit. While ion generators may remove small particles (e.g., those in tobacco smoke) from the indoor air, they do not remove gases or odors, and may be relatively ineffective in removing large particles such as pollen and house dust allergens. Although some have suggested that these devices provide a benefit by rectifying a hypothesized ion imbalance, no controlled studies have confirmed this effect.

Moulds produce tiny spores to reproduce, just as plants produce seeds. Mould spores waft through the indoor and outdoor air continually. When mould spores land on a damp spot indoors, they may begin growing and digesting whatever they are growing on in order to survive. There are moulds that can grow on wood, paper, carpet, and foods. When excessive moisture or water accumulates indoors, mould growth will often occur, particularly if the moisture problem remains undiscovered or unaddressed. Moulds can trigger asthma episodes in individuals with an allergic reaction to mould.

An air cleaner must constantly recirculate indoor air in order to effectively reduce concentrations of airborne particulate contamination. Cleaning the total volume of air contained within a room is the equivalent of completely changing the air in that room. Air cleaner filtration capacity is expressed as the number of air changes per hour (ACH). For air cleaners of equivalent filter effectiveness, a higher ACH rating yields higher levels of air quality improvement.

How is the cost of $1.80 per week for running the Aquasana filter worked out?

This post was submitted by Rob Pritchard.

Does the filtered water have small black particles, as found in my filtered water using Brita filter?

You will not have any black particles in your countertop water filter even when you run water through your filter for the first time. With the shower filter, you need to turn the tap on for around 1 minute the first time you use it as there will be some initial granules which are there due to installation. After this first minute during the initial time you use the shower filter, the water will run clear for the life of the cartridge and beyond.

This post was submitted by Soo Leong Wong.

Eco-Friendly Water Filters

Environmentally FriendlyAll of the Aquasana range is built with the environment in mind. Made from 100% recyclable plastic, not only are we reducing the amount of wasteful plastics in the world we also campaign for the reduction of single use plastic bottles that have become one of the biggest polluting industries we face today. In the US they produce and discard over 60,000,000 plastic bottles every day!

Billions of dollars are spent on advertising campaigns to give consumers the perception that bottled water comes from pristine mountain springs or pure underground aquifers. The truth is that bottled water is often little more than tap water in a bottle.

The reality of bottled water is that you pay from $1 to $4 a litre for the perception of higher quality, when in fact the quality of bottled water is at best an unknown!

With the Aquasana Water Filter each filter cartridge set can replace over 2000 single serve water bottles.

Cartridge end caps should be recycled and the cartridges themselves can be buried in the garden, as they are a great fertilizer

Quality home water treatment is by far the most economical, the most convenient and the best way to produce truly healthy, great-tasting water. It is also the right choice environmentally!

Does the Aquasana Countertop remove Ammonia?

I noticed the FAQs suggested it filters out Chloramines. But it does not specifically say ammonia. I could not find this from the cert and performance test also…


Regarding Ammonia, if following the Chloramines FAQs, does this mean the filter should be replace every 5 months? Thanks.

This post was submitted by Eric Chan.

Does the Aquasana water filter remove fluoride?

This post was submitted by Lucas.

Does your system remove bacteria?

This post was submitted by Lucas.

Can I still use the hot water from the tap since this filter can only be used for cold water?

If the Aquasana Countertop Unit (AQ-4000) is installed to my kitchen tap, how can I still use the hot water from the tap since this filter can only be used for cold water?

This post was submitted by Lucy Patterson.

What sort of prices are involved in attaching a water filter system to our office sink?

This post was submitted by Kerri.

Water Filter for Tank Water

Is the Aquasana Countertop Water Filter suitable for tank water systems?

For households that are supplied with tank water or who have sediment in their water for various reasons, it is recommended that you install a pre-filter.

If sediment is an issue with your current water supply, installing the pre-filter kit will ensure long life for your replacement cartridges so your water quality is not compromised.

The pre-filter can be attached to both countertop and undersink units.

The pre-filter for the countertop is $60, which includes 1 cartridge and is a replacement for your current tap divertor plus hoses.

The pre-filter for the undersink unit is $35; this is just the housing + 1 cartridge and can be installed directly into the ‘incoming’ water hose under the sink

If you are purchasing a new Countertop with a pre-filter, the cost is an additional $35 to the price of the Countertop and this price includes 1 pre-filter cartridge.

The pre-filter cartridges are to be replaced approximately every 3 months (the pre-filter cartridges are visible when installed and need to be replaced when there are no white areas left). The replacement cartridges are $12 each and can be added to the Water 4 Life program for auto shipping.

A more permanent solution for those who own their own home, is to install a Rhino Whole of House Water Filter. The Rhino is perfect for Tank, Bore and Dam water systems.

Do the Aquasana Products Remove Chlorine?

Aside from all the health risks related to chlorine in our drinking water, it is the primary cause of bad taste and odor in drinking water. The good news is that chlorine is one of the easiest substances to remove from our water.

Chlorine is a fairly large sized particle, and all of the water filters in the Aquasana range adequately removes up to 91% so long as the replacement cartridges are replaced regularly. A great advantage with the Aquasana products is that they will also remove the more complex contaminants like lead and synthetic chemicals.

Aquasana utilizes a patented, high tech multi media block filter which incorporates ion exchange resin – a process whereby lead ions are replaced with potassium ions, improving taste, water quality and ph levels.

When chlorine is added to our water, it combines with other natural compounds to form trihalomethanes (chlorination byproducts), or THMs. These chlorine byproducts trigger the production of free radicals in the body, causing cell damage, and are highly carcinogenic. Click for more information on chlorine in our water.

Aquasana Water Filter vs Ceramic Filtration

A ceramic water filter system has a larger pore size, 1 micron (compared to the Aquasana filter pore size of 0.5), this means the Aquasana will remove particles 200 times smaller than a human hair. While asbestos fibers will pass through a ceramic filter, they can not pass through the Aquasana filter.

The ceramic filters do not use the ion exchange technology, which in the ‘B’ cartridge helps the filter to concentrate on heavy metals like lead and mercury and enhances pH balance by adding potassium to the water.

The ceramic filters will typically not utilize coconut shell carbon either. Coconut shell carbon is the purest form of carbon known to man, and can remove SOC’s, VOC’s, and complex chemicals which are created when certain chemical combinations bind and make new chemicals.

These are called trihalomethanes and poly-chlorinated-biphenyls. The unique patented technology of the Aquasana allows it to produce higher quality water, at a better price, than any other product on the market.

Does the Aquasana Remove Creosote?

Yes, the Aquasana Water Filters, including the Aquasana Rhino ‘Whole of House’ water filter will remove creosote from rain water tank systems. If there is creosote in your water supply, it is recommended that you install a whole of house water filter because creosote is very cancerous to the skin, lungs and eyes.

Does the Aquasana Remove Chloramines?

The Aquasana Countertop will reduce chloramines by up to 99%, but not for a full 2000 litres. Because chloramine is a combination of ammonia and chlorine, chloramines will exhaust the filters after about 1500 litres (which means testing showed that the system was actually good for 3000 litres), or about 5 months. The Rhino ‘Whole of House’ Water Filter will treat 12,000,000 litres for chloramines, or about 4 years for the average Australian.