Pumps with a metal casing may cost up to double the price of a similar pump without the casing. For instance, the price of a Â½-horsepower stainless steel or brass core pedestal pumps can run between $280 and $500.
A shower pump is an electric pump that is used to maintain a steady flow and pressure of water in a shower. The pump works best on stored water as compared to water that comes directly from the mains. With a shower pump, the fear of water suddenly stopping when you are taking a shower is eliminated.
These, then, are the main parts you'll find inside a pressure washer: 1  Water inlet: A hose that connects the pressure washer to the main water supply. 2  There's usually a filter in the inlet to stop dirt and debris entering the washer and clogging up the works. Cold water flows in from a faucet (tap) through another hose and is filtered on the way in. 2  An electric motor or diesel engine powers the washer. 3  Powered by the engine or motor, a water pump (impeller) draws in the detergent and water and mixes them together.