Natural Zeolite Media for Fine Sediment Filtration

For many years the standard granular media used to reduce sediment were “multi media” combinations featuring such ingredients as garnet, anthracite, and sand. These mixed bed filters usually resulted in filtration down to 10 to 15µ.

More recently, high purity zeolite has become the medium of choice for sediment filtration.  Modern zeolite filters achieve a 5µ nominal rating, with a couple of brands claiming to be even tighter.

There are some 40 known types of natural zeolites.  The most common is clinoptilolite.


Andrew Young Views Fluoridation of Water as a Civil Rights Issue

Civil rights pioneer, former mayor of Atlanta,  and former U.S. Ambassador to the United Nations Andrew Young has sent a letter to the governor of Georgia calling for hearings to investigate why water fluoridation is continuing despite numerous reasons for ending the practice.

“This is a civil rights issue,” Young says, “and the people have a right to have the full story given to them, rather than highly edited, misleading talking points.”

The letter was also sent to American Water Works Association CEO David LaFrance. (more…)

Pure Water Products Brings Back the Ink Blotter


Back in the olden days when people bravely drank water straight from the tap and got milk straight from the cow, ink blotters were popular and necessary items. Before ballpoint pens, people wrote on paper by dipping a sharpened feather (called a quill) or a metal pen tip into an ink container. After transferring the ink to the paper in the shape of letters and words, they “blotted” what they had written with absorbent paper called an ink blotter to dry the excess ink and thus prevent runs and smears on the page. Ink blotters were popular items in homes and offices and were frequently used as bearers of advertising.

Since quills are now seldom used, ink blotters fell into disuse. Until now. We decided to bring back the blotter by creating one that works on today’s writing instruments. This blotter is guaranteed to prevent ink runs and smears on anything you write. It works with ballpoint pens, computer screens, phones–any modern writing instrument. What’s best is that you don’t even have to blot the words on the screen. Just keep it anywhere in your home or office and, as if by magic, it prevents smears on anything you write. Trust us. It works great!

You can print this blotter directly off the screen and it will work fine.  To fully activate the magical properties of the blotter, however, you have to read the advertising printed on back of the paper version.  See below:

Blotter Advertising.

Handy Alphabetical Index to Water Treatment Products and Parts



Add-on Filters

Add-on Ultraviolet Units

Aeration Systems for Iron & Sulfide

Air Gap Faucets

Air Pumps for water treatment.

Aquatec 6800 RO Booster Pump.


Backwashing Filters (Basics)

Backwashing Filters (5600)

Backwashing Filters (Fleck Larger than 5600)

Backwashing Filters Accessories

Backwashing Filters Parts

Bath Dechlorination Tablets



Carbon Block Filter Cartridges

Ceramic Filters

Cartridges, Replacement Filter

Chloramine Filters for the Whole House

Chlorinators (Dry Pellet)

Chlorinators (Feed Pump Systems)

Countertop Reverse Osmosis

Countertop Water Filters


Demand (Delivery) Pumps

Dimensions of Selected Products

Doulton Ceramic Filter Cartridges

Double Countertop Filters

Double Undersink Filters

Dry Pellet Chlorinators


Emergency Filters



Filox Filters (for iron, manganese, and hydrogen sulfide reduction)

Filter Cartridges, Replacement, Listed Chronologically by Part Number

Filter Cartridges, Replacement, Descriptive List, Sorted by Sizes

Filter Housings

Filter Media (where to buy it)

Filter Media (explanations & usages)

Fleck Filter Valves

Fluoride Removal



Garden Hose Filters

Glossary of Water Treatment Terms


Hot Water Filter

Hydrogen Sulfide Treatment (See Dry Pellet Chlorinators, Chemical Feed Systems, Backwashing Filters, and Filox Filters)

Hydrogen Peroxide Feeder

Hydrotech Filter Cartridges

Hydrotech Reverse Osmosis Membranes


Inline Filters

Installation Instructions & Product Information

Iron Removal Filter (see also Filox Filters)

Iron Sequestering System


John Guest Fittings


Katalox Light Filters


Ledge Faucets


MatriKX Filter Cartridges

Membranes — Reverse Osmosis

Microline Filter Cartridges

Microline Reverse Osmosis Membranes

Model 77 Countertop Filters

Multipure Carbon Block Filters



Order Form For Replacement Cartridges



pH Increaser (Calcite)

pH Increaser (Soda Ash)

Point-of-Entry Filters

Pond Filters


Pura Ultraviolet Systems


Q Series (Omnipure) Filter Cartridges


Refrigerator Filters

Resin (for softeners)

Reverse Osmosis

Reverse Osmosis Parts

Reverse Osmosis Pumps (Undersink Units)

Reverse Osmosis Tanks


Salt-Free Water Conditioning Scale-net Units

Sediment Filter Cartridges

Shower Filters

Single Tank Aerators

Siphon Filters


Spigots for Filters and RO Units

Spin Down Sediment Filters

Stainless Steel Whole House Filters

Sterilight Ultraviolet Systems


Tanks (All Types)

Touch-Flo Faucets


Ultraviolet Systems

Under-Sink Filters

Under-Sink Parts


Vitabath (bath dechlorination tablets)


Washing Machine Filter

Water Articles.

The Pure Water Gazette’s water article archive.

Water Softeners

Water Softener Alternative

Water Testing: Amateur (ours) and Professional (National Test Laboratories)

Whole House Filters




How is tap water treated, and what causes a boil-water advisory?

There’s nothing like a storm to make you appreciate tap water.


  by Chanie Kirschner

Gazette editorial note:  There’s nothing like owning an ultraviolet unit to make you appreciate being able to ignore boil-water advisories.boilwater

In the wake of hurricanes and resulting power outages, many times people are told their tap water is non-drinkable. Water providers often issue a “boil-water advisory” because a treatment facility was affected during a storm. Residents are typically told that water is safe for bathing and laundering clothes. But even though the water that comes out of the faucet looks the same as it always does, something obviously happened to make it no longer potable, or safe to drink.


Where does the water go?

pipe leak 2

Every municipal water system leaks.  Billions of gallons of water are lost every day from U.S. drinking water systems.

The city of Joliet, Illinois recently raised its water rates but was also forced to enter into a serious discussion about where 1/3 of its water goes.  A full 33 percent of the water produced by the city for sale is not being sold and for the most part is unaccounted for. What’s worse, the amount or “lost” water is increasing every year.
“Acceptable” water loss for cities is around 8%. Leaks account for most of this. A certain amount of leakage is inevitable, and it’s hard to find leaks in pipes that are 10 feet underground. Big leaks, like main breaks, can be estimated and thus “accounted for.”  Also, the city can keep estimated records on water used for firefighting and street cleaning. (more…)

Lowering the pH of Water in the Home

by Gene Franks


High pH in home water is treated far less frequently than low pH. In general, there are few negatives to high pH, but it can produce a soda taste and even cause corrosion in piping and fixtures made with metals such as brass, copper, zinc, aluminum and iron. Very high pH can also cause chlorination to be ineffective.

High pH can be reduced with specialized ion exchange media, but the most common treatment is to inject a mild acid into the water line. It is normally a “point-of-entry” treatment.

With wells, the normal place to inject the acid is just before the pressure tank.

To inject you need a chemical feed pump made of materials that resist corrosion (plastic, in other words) and a solution tank to hold the acid.  The most commonly used acid for pH reduction is acetic acid, which is plain old supermarket grade white vinegar. It is safe, effective, economical, and readily available. Acetic acid is usually injected in about a five percent solution. Other popular weak acids available to residential users are citric acid, a bit stronger than vinegar, which is fed in a one percent solution, sodium bisulfate (potable water grade), fed at one percent, and alum, fed in a two-percent solution.

Hydrochloric and sulfuric acids are usually used only with industrial applications and in cases where alkalinity is exremely high.

As with most treatments in which a solution is fed into a water line, pH reduction will involve some trial and error.  I suggest that you start with the solution strengths given above, set your pump at its medium setting, and give it a try.  Check the pH downstream of the feed but before any water treatment equipment after a couple of days and adjust your solution strength or pump setting as needed.

Nitrates in drinking water are becoming a growing concern

As nitrate levels in the water of Iowa’s cities continue to climb, many are beginning to question the safety the 10 ppm federal allowable for nitrates in drinking water.

State sources in Iowa say that the water supplies of about 260 cities and towns are now  highly susceptible of becoming contaminated by nitrates and pollutants — about 30 percent of Iowa’s 880 municipal water systems. The state data centers on the cities reporting nitrate levels of 5 milligrams per liter or higher, a warning sign that nitrates are approaching harmful levels. (more…)

 The Pure Water Occasional for September 30, 2016

In this early Fall Occasional,  you’ll learn which shower filter makes you sing better, what a developing country cannot be, what is the MCL for potato chips, which countries have water infrastructure superior to that of the US, which famous lake has a bathtub ring, and what was found in the McMillan Reservoir. Meet Kelly Reynolds, Ralph Nader, Joan Rose and Damian Gjiknuri. Hear about microbes, triclocaraban, Chromium 6, biofilm, THMs, HAAs, DPBs, TFMs and Coca Cola. Learn about the 8-year boil water advisory at “Bay of Quinte” Mohawks, the final barrier, the standoff by the Standing Rock Water Protectors, illegal cesspools in HI, toilet reefs in New York, plus the controversy over the Vjosë River.  And, as always, there is much, much more.

The Pure Water Occasional is a project of Pure Water Products and the Pure Water Gazette.

To read this issue on the Pure Water Gazette’s website,  please go here.  (Recommended! When you read online you get the added advantage of the Gazette’s sidebar feed of the very latest world water news.)


Sprite Shower Filters: You’ll Sing Better!”

We’ll start this issue with a perceptive article by an author familiar to the water treatment industry, Dr. Kelly Reynolds of the University of Arizona.  Kelly writes frequently on public health issues relating to water and the microbial aspects of water treatment. She is very skillful at presenting technical issues in a way that can be understood by those, like me, who are less technically prepared. The article below challenges our misconceptions about the superiority of US public water delivery infrastructure as compared with that of many other countries. Gene Franks.

Eliminating Chlorine Residuals from Tap Water

By Kelly A. Reynolds, MSPH, PhD

Drinking water from the tap is not sterile but is regulated to a level of acceptable risk so that infections from microbial exposures and illnesses from chemicals occur at very low levels. In the US, acceptable risk goals are set at one infection per 10,000 persons per year for microbes and as low as one in a million cases of cancer from chemicals, including added disinfectants. The question is how to ensure the safety of drinking water considering that common water treatment protocols inherently create additional health risks. Recent studies compare differences among various countries in water quality management, while exploring whether or not carcinogenic chlorine residuals can be safely excluded from municipal tap water supplies. (more…)

Media Trap

Posted September 30th, 2016

What’s This?




The media trap is to be installed after your backwashing or “in/out” tank style filter. Its function is to protect your home’s plumbing fixtures from particles of filter media that might escape from the filter tank. This usually doesn’t happen, but the media trap will provide protection if it does.

The filter trap has no cartridge to change, although you might eventually need to remove the clear bowl and clean the metal screen. When installing, please note the directional flow arrow.

The filter trap is so light that your pipe will support it. There’s not need for a mounting bracket.

Pure Water Products furnishes a media trap free with each of our backwashing or simple in/out filters.