Swimming pool filters are a very important part of the maintenance and up keep of a pool. In many places there are laws that actually state the entire volume of the pool must go through the filter in a desired amount of time, usually between thirty minutes and six hours. There are a couple different ways to filter a pool such as sand and cartridge. A diatomaceous earth filter or a cartridge filter is designed to have the water pass through filter grids covered in diatomaceous earth, which is a fine powder contrived from chemically neutral, fossilized residuals of sea entities called diatoms. With cartridge filters the unclean water will go through a filter created from polyester or corrugated paper. To clean you simply take out the filter and rinse it off. These filters can have a life span of up to eight years and means you do not waste money on replacements constantly. Time and money savers! It is a necessary part of the whole process of keeping your pool water free of dirt and grime. It is not only a maintenance issue but a health and safety one! So don't settle for less when you can come to us and be sure you get the best!!