What is the difference between cartridge, sand and diatomaceous earth (DE) filters?
The efficiency of a pool filter is rated by how many microns or dirt particles it can remove from the water. If the filtration area is maximized-meaning that you can go longer periods of time between filter cleans-and your system is designed for maximum pumping power, your pool water will turn over faster and more efficiently. Cartridge filters use a thick paper cartridge to filter bacteria. Sand filters use sand and DE filters use diatomaceous earth (or a similar product) to filter out or catch the bacteria.
