Swimming Pool Pump The heart of the swimming pool system is the pool water pump. In a normal pool pump system, an electric motor will spin an impeller inside the pump’s housing. The impeller drives the water from the various drains through the filter and back out to the water inlets. Swimming pool pumps have both an inlet and outlet for water circulation. Buy On Amazon Today’s Popular Picks Hayward SP2307X10 MaxFlo XL Pool Pump Swimming Pool Pump Buy On Amazon Pentair 340038 SuperFlo High-Performance Single Speed Pool Pump Swimming Pool Pump Buy On Amazon Harris H1572729 ProForce 1 HP