The Gusher 30 is the largest whale bilge pump. Capable of over 117 litres (31 US gals) per minute maximum output. Twin diaphragms ensure pump continues working if one is damaged Double action pump Powder coated diecast aluminium alloy Nitrile valves and diaphragms Can pump oily bilge water; effluent and diesel No tools required for inspection and cleaning Will pump with one damaged diaphragm Available for deck or bulkhead mount Pump may be accepted on some vessels for use as an emergency fire pump