DIATOMACEOUS EARTH FILTERS
Filter Media:
- Pool-grade Diatomaceous Earth
- Cellulose Fiber
- Volcanic powder
Effective Filtration (microns): 3 - 5 microns
Diatomaceous earth filters use fossilized phytoplankton called diatoms to filter your pool water. Most people call the filter media "earth" or "flour". DE filters work by sending the pool water in through the bottom of the filter tank; pass it through diatomaceous-coated fingers or grids; and then through the top of the filter.
Pros: Best filtration on the market; it will pull out particles twenty times smaller than the width of a human hair. Will clean the pool quicker than other filters as DE pulls out the smallest particulate. Doesn't need debris in the filter to increase filtration like sand.
Cons: Most expensive form of filtration. More moving parts than a sand filter or a cartridge filter. Can "plug up" frequently with enough contaminants/debris and must be chemically treated yearly for proper filtration.
Replace Media: Media must be replaced each time the filter is "bumped" and then backwashed. Since the powder is discharged in the backwash cycle, new media MUST be introduced into the system for proper filtration. |