Frequently asked questions

Besides Filteration what other features does Zeobrite offer?


In addition to superior filtration, Zeobrite provides longer filter run times than sand. Because of Zeobrite's large amount of available surface area, the filter can run 4 to 6 times, and in some cases, longer before the filter pressure rises to the point where backwashing is required. This feature conserves water and reduces the use of chemicals to maintain water balance. Zeobrite also reduces the amount of head pressure in the filter. Typically, the starting pressure with Zeobrite is 2-3 psi lower than with sand. This is due to Zeobrite's micro-porous structure that allows water to flow through the granules, which reduces the amount of water resistence to lower the head pressure. This feature equates to lower electric consumption by allowing the filter motor to operate at a lower Hz, which reduces the kilowatt hours used. An additional feature of Zeobrite is its ability to remove ammonia and chloramines from pool water. This feature is covered in more detail under the question heading "How does Zeobrite remove ammonia from pool water?"




I have a silver/copper/zinc purification system. Can I use Zeobrite with it?


Yes, Zeobrite can be used with any of the ion systems. We engineered Zeobrite to have a higher capacity, or attraction, for ammionia ions and less attraction for the metal ions such as silver, copper and zinc. Some products that are similar to Zeobrite make claims of having the highest cation exchange capacity of any product on the market. Although that statement may be true, we found that a high cation exchange capacity in a zeolite mineral rock, which is the technical name for Zeobrite, can actually remove the beneficial silver, copper, etc. from the water and bond it to the media. These beneficial ions are meant to be dissolved in the water and work by having long-term contact wtih algae, bacteria, etc. If the ions are removed from the water and held in the media, the contact time of the water flowing through the filter is not enough to make them effective.




How does Zeobrite remove ammonia from pool water?


Zeobrite is a cation exchange mineral rock. This simply means that Zeobrite can exchange its basic mother earth ions such as sodium, magnesium, potassium, and sodium calcium, with other ions found in water environments. Since Zeobrite is a negatively charged particle, and ammonia is a positively charged particle, this unique exchange occurs by releasing a mother earth ion and attaching an ammonia ion. This bonding action is referred to in scientific terms as Vanderwalls Bond. It simply means that we can remove excess ammonia from pool water.




How long does Zeobrite last?


With proper care of the Zeobrite, it will last for many years. Zeobrite is stable across a wide range of pH and harsh chemical treatment. We typically recommend changing Zeobrite approximately every five years to maintain its' optimum filtering capacity of 3-5 microns. By maintaing good balanced water chemistry and performing routine cleaning of the Zeobrite, it will provide many years of high quality fitration of your pool water.




Why does Zeobrite filter better than sand?


Typical filter sand is a round slick granule that filters by capturing suspended particles between the grains of sand. As the suspended particles build-up on the top 2-3 inches of sand, better filtration takes place. Sand media can remove particles down to about 40 microns in size. Zeobrite, on the other hand, consists of a rough angular surface in additional to its micro-porous structure. As water flows through the Zeobrite media, larger suspended particles are captured between the grains of Zeobrite, as well as, on its rough surface. In addition, water is actually flowing through the micropores of the granules allowing Zeobrite to remove small suspended particles down to approximately 3-5 microns. These filtering features allows Zeobrite to provide Superior water clarity from your simple sand filter.




Can I use Zeobrite in a DE Filter?


No, Zeobrite is a granular media for use in Sand Filters. Even in powder form, the specific gravity of Zeobrite is heavier than powder products used in DE Filters. The Zeobrite powder would tend to slide down the DE grids and not provid a complete coating of the grids.




Can I mix Zeobrite with sand?


We normally do not recommend mixing the two products. Unlike sand that filters only on the top 2-3 inches of the bed, Zeobrite is a deep-bed filtering media that utilizes more bed depth for filtering. In addition, the sand and Zeobrite could mix allowing the rough angular particles of Zeobrite to rest against the slick round particles of sand. This could actually create gaps between the partcles where the water flows and reduce the fitering capabilities of the system. It would be permissable to use sand as a support material up to the top of the lower laterals. Since there is no filtering capacity below the laterals, mixing of the sand and Zeobrite would have no effect in this area.




How much Zeobrite do I use in my sand ?


Zeobrite weighs half as much as sand per cubic foot. Sand weighs approximately 100lbs per cubic foot. Zeobrite weighs approximately 50lbs per cubic foot. Therefore, a sand filter that holds 300 lbs of sand would require 150lbs of Zeobrite. The 150lbs of Zeobrite will fill the sand filter to approximately the same volume level as 300lbs of sand. Please refer to the Media Requirement Chart in our Zeobrite Installation Guide for the replacement amount used in some of the most common residential size pool filters.




What is Zeobrite?


Zeobrite is an all-natural volcanic mineral rock known as zeolite. Zeolites are formed over millions of years creating a very unique micro-porous structure. After we mine the rock, it goes through our processing plant of various crushers and screening sleeves to acheive the correct particle size for use in water filtration. Viewing individual particles under an electron-scanning microscope reveals a structure of cavities and pore spaces similar to the appearence of a sponge. This micro-porous structure provides a tremendous amount of available surface area for filtering very fine suspended particles from your pool water. If one tablespoon of Zeobrite granules were unfolded to expose all of the available surface area, the exposed surface would cover an entire football field.




Should I use a layer of pea gravel in my filter?


Pea gravel can be used in any size filter as a dual media. Typically, pea gravel is not used in small filters up to 24 inch diameter. It is highly recommended in filters that are 30-inch diameter and larger, that pea gravel be installed up to the top of the laterals (the fingers at the bottom of the filter). The pea gravel serves two purposes. First, it fills the void space beneath the laterals, providing a layer of support for the Zeobrite media. Second, and most important, pea gravel disperses the hydraulic flow of the backwash water allowing the water to flow more evenly up through the Zeobrite media, ensuring that the media is properly cleaned during backwash.




What type of filter do I use with Zeobrite?


Zeobrite is a direct replacement for filter sand media in Sand Type Filters. Zeobrite is not made for use in Cartridge or DE Type Filters. Please refer to our "Zeobrite Installation Guide" for the amount of Zeobrite that replaces regular filter sand.





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Zeotech Corporation

P.O. Box 1718
Fort Worth, Texas 76101
Toll Free 1-800-575-7877

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