Incredible Minerals Today

Why does DE swim pool filter powder create the clearest pool?

Posted by Julie Brown

Apr 25, 2019 2:30:17 PM


Finally! Winter is over, and we're all looking forward to a perfect relaxing summer day, and a beautiful crystal clear swimming pool.  Exactly how do swimming pools get to be so crystal clear? Diatomaceous earth filter powder, of course! 

Filtering your swimming pool water with diatomaceous earth filter powder(DE) gives you water that really sparkles.  That’s because DE remove the tiniest of contaminants – particles as small as five microns (an average grain of sand is 1,000 microns!) Even though these particles can’t be seen individually, collectively they greatly affect pool water clarity. 

When diatomaceous earth is introduced into the pool filter system, it coats the filter cloth. As water passes over the filter grids, the DE particles capture even the smallest suspended dirt particles. When cleaning is needed, the water flow is simply reversed. 

Here’s why diatomaceous earth filters work so well. Water passes through a series of DE-coated grids.  Under a microscope, DE looks like a collection of tiny sponges. And just like a sponge, water can pass through, but microscopic impurities like dirt, algae, and some forms of bacteria can’t. 

diatomA single diatom under a microscope.

Cleaning your DE filter with a heavy-duty liquid pool filter cleaner removes body oils, suntan lotions, organic materials and minerals, helping your DE pool filter operate more efficiently and last longer. To clean your DE filter, stop filter operation. Bleed off excess pressure through the safety valve. Remove the pool filter elements (grids) from the filter and rinse off excess dirt with a hose from top to bottom. Place the grids in a bucket and add the proper dosage of filter cleaner. Soak for eight to ten hours. After soaking, rinse out excess pool filter cleaner with a water hose at maximum pressure. Reinstall the grid and add new filter media. Resume normal DE pool filter operation. 

To learn more about Celatom DE, the #1 swim pool filter powder in the world for swim pools, click here. To learn more about our revolutionary low dust swim pool filter aid, CelaPool , click here: Learn more about CelaPool

To talk to one of our swim pool filtration experts, click here.

Thanks to the Pool Care Plus blog, for the great swim pool DE filter powder information. 


Topics: Filtration, swim pool, diatomaceous earth swim pool filter powder, swim pool filtration, swim pool filter powder


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Incredible Minerals Today gives readers insights and information about new exciting uses for diatomaceous earth, perlite and clay around the world today, plus the latest information about EP Minerals. 

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