Abstract: A sensing valve is provided in a water supply pipe upstream of a solenoid-closed valve. A sensing switch coupled to the sensing valve is controlled in position by such valve. A normally open timer switch is coupled to a timer and maintained open by the timer in accordance with the setting of the timer and during energization of the timer. The timer switch is closed upon the timing out of the timer and opened manually. The sensing switch, the timer and a source of electrical energy are electrically connected to a first circuit whereby a flow of water in the water supply pipe at the sensing valve opens the sensing valve and closes the sensing switch to energize the timer.