Abstract: A remote control for a large-area sprinkler system, where the sprinklers are to be operated in a sequential manner according to a specified program. The sprinklers are hydraulically operated and are controlled by a four-way latch valve whose piston, or core, will shift to either a sprinkler-open state or a sprinkler-closed state, the shifting being by energizing opposing solenoids.The electrical system to power the solenoids is a low voltage - low amperage control circuit permitting the use of small diameter wires to be extended from a central power supply source for substantial distances therefrom and to each sprinkler. A capacitor in the circuit adjacent to latch valves builds up a charge sufficient for one of the solenoids to be energized to shift the latch valve to either open or close the sprinkler.