cylinder. this cartridge is what grabs and holds onto the debris that is collected. they are able to filter large amounts of water in less time than with a sand filter. they also don’t have to be cleaned as often because they can hold more debris. so if you are looking for a way to clean your pool and cut down on the time you spend on such tasks this could work well for you. you should clean them out once a month when you are using your swimming pool on a regular basis. you can take out the cartridge and gently wash it with water.
don’t use high pressure on 