Cleaning a pool pump impeller can be broken down into 4 major steps. Start by turning off the power at the circuit breaker to ensure safety. Remove the basket lid of the pump and the pump basket. Then Take a flexible wire and bend it over to form a hook. Insert the wire into the impeller ‘s opening and fish around for any debris or clogged material. Finally, replace the pump basket and fill the housing of the pump with water. Finally, close it with the pump lid and switch back the power.