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There are three popular methods of filtration – Sand, Cartridge, and Diatomaceous Earth (D.E).

Sand - In this method, impurities are extracted from the water utilizing sand to collect and attract the debris. Sand filters must be backwashed (running it in reverse) to unload the water waste. This is a manual process that must be performed every few weeks. Sand filters trap debris as small as 20 to 40 microns.

Cartridge - Cartridge filters have a greater surface area than sand allowing for fewer clogs and easier maintenance. Cartridge filters are designed to run at lower pressure than sand which puts less backpressure on the pump, providing more flow and turnover. Cartridge filters should be cleaned once or twice a season by simply removing the cartridge(s) from the housing and hosing them off. Cartridge element filters trap debris as small as 10 to 15 microns.

D.E. - Diatomaceous earth is mined and is the fossilized exoskeletons of tiny diatoms. They are used to coat "grids" in the filter housing and act as tiny sieves allowing for the removal of debris as small as 3 microns. Once the pressure in the filter rises, the filter is backwashed just like a sand filter and then "recharged" with more DE powder. DE filters trap debris as small as 3 - 5 microns.

Pentair pool filters provide remarkable strength and durability with their one-piece, non-corrosive tanks and UV-resistant finishes and offer superior choice within each of the above technologies. Pentair pool filters allow for easy servicing, winterization, superior water flow and long filter cycles and that equals efficient, economical performance.

Cartridge Filters
Cartridge Filters
D.E. Filters
D.E. Filters
Pentair Sand Pool Filters
Sand Filters
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