Pool owners should run their pool pump and filtration systems for at least 10 hours per day. It is a common misconception that pool filtration systems only filter out large debris such as leaves and grass. In fact, pool filtration systems specialize in capturing microscopic particles such as bacteria and algae by constantly generating circulation throughout the perimeter of the swimming pool. One way to maximize the circulation is to adjust the eyeball jets in your pool inlets to make sure that the water is moving in a circular motion.