A pump assembly includes a motor arranged adjacent to a front surface of a first body, the first body having a cavity arrange between the front surface and a back surface of the first body. The motor may include a rotor having a shaft formed substantially of a single unit of material that is coupled directly to an impeller including a bearing surface received by a cooperating bearing surface arranged in a nozzle. The bearing surface of the impeller, and the cooperating bearing surface of the nozzle, support the impeller rotationally on the shaft such that when the shaft is rotatably displaced by the motor, the impeller displaces the water into the cavity arranged between the front surface of the first body and the back surface of the first body and into the nozzle to create a jet of water.