The Whale GP0551 Gusher Galley is a manually operated freshwater pump suitable for use with showers and faucets throughout your boat. The enclosed double action diaphragm is easily operated by the foot pedal to pump water when required. This is a self priming pump and can be used to prime Whale In-Line Booster pumps. The Gusher Galley pump can also run dry without causing any damage. Installation is easy thanks to multi directional inlet and outlet hose connections.The pump body is made from a tough acetyl and nylon shell, protecting the nitrile and neoprene diaphragm. The foot lever is made from an aluminium alloy and all fastenings on the pump are stainless steel. Because of the pump's construction, it could also be used to pump salt water if desired.