Flush valves and flushometers are metal water-diverting valves that use pressure from the water supply system instead of gravity to cause a urinal or toilet to flush. The devices also allow the flow ...
Manual / Handle A lever is used to activate the valve. Automatic A presence sensor is used to tell when the fixture has been used. Foot Pedal A foot pedal is used to flush the fixture. Search Logic ..
This was true for faucets and urinals, too. "We consider auto valve (fixtures) highly wasteful water-wise, because almost every valve that is designed to sense body movement is going to flush ...