Cleaning: Pump should be cleaned when water flow is visibly reduced. First, unplug the pump’s power cord, then remove the pump from the water (do not use power cord to lift the pump). Carefully and firmly pull the snap-on cover from the pump body. Remove the pre-filter sponge and wash thoroughly in fresh water (a blocked sponge will reduce the pump flow rate and performance). Cleaning frequency will depend upon water condition and use, but it is recommended to inspect the filter every 2-3 months.
Maintenance: The only serviceable parts are the impeller and filter. Remove the impeller assembly by turning the cover counterclockwise to release lock. Firmly pull away from the pump motor. Carefully remove impeller. Wash parts carefully with fresh water. Once you have cleaned the pump, reassemble it in reverse order.