The Whirlpool WPW10465252 Drain Pump removes used water from the washing machine during the drain cycle to support proper washer operation. This electrical pump works by drawing water from the washer tub and directing it through the drain hose into the household drainage system. It operates at the appropriate stage of the wash cycle to help clear water before rinsing or spinning begins. A properly functioning drain pump supports effective water removal, helps prevent standing water inside the tub, and allows the washer to progress through its cycles. If the pump becomes clogged or faulty, the washer may drain slowly or fail to empty.