Pool Filter Systems are needed in every pool to help keep the water circulated and clean. Pumps vary based on the size of your pool. The horsepower of a pump can range from three fourths to two horsepower and will run for six to eight hours daily. Pumps offer automatic chlorinators that help make it easier to add chlorine to the pool. In total, there are three kinds of filter systems to choose from; Sand,(D.E) Diatomaceous Earth, and Cartridge. We install each kind of filter with Sand and Cartridge being the most popular. Out of the three of them, D.E Filters keep the pool the cleanest.