CWS50 1/2HP DEEPW. WATER PUMP WAYNE | Jet pumps are single-stage domestic water pumps designed for pumping potable water in applications where the water is up to 100 ft below pump center line. A pressure switch is a standard feature. A built-in control valve is available on deep well pumps. Deep well pumps can be mounted to either a pre-charged, conventional type or free- standing pressure tank.