Internal View of a D.E. Filter

Diatomaceous Earth (D.E.) is the BEST water filtration method available for swimming pools today.  Which means it removes even smaller particles than the sand and cartridge methods.  Diatomaceous earth is a porous powder with microscopic openings, that when magnified looks like tiny sponges. Clean, Clear water can pass through the openings but any water with small particles ranging from 1 - 3 microns become lodged in the diatomaceous earth particles. 

All D.E. filters use internal elements to give the powder something to adhere to.  Follow the manufacturers instructions for pre-coating a D.E. filter with diatomaceous powder.  This is generally done by adding the powder through the skimmer with the filter system circulating.

For more information about swimming pool sand filters please contact Pro Pools at 888-352-7582.