Abstract: An electronically controlled electro-mechanical device designed to limit a finite amount of water per flush to a tank reservoir of the common household toilet, or tank-less toilet or urinal, providing positive shutoff of water flow and anti-siphon backflow prevention. The toilet is flushed, the flush lever activates an attached tilt switch, the tilt switch actuates the countdown timer by means of electrical linkage, the countdown timer in turn activates the solenoid valve by means of electrical connection. The water enters the solenoid valve, passing through the valve and on to the float valve mounted to the toilet tank for fill up. The Countdown timer counts down from the full minutes and seconds set to 00:00 and shuts off the solenoid valve and ultimately the flow of water. The Countdown timer then resets itself to the time set in memory for the next flush operation. A float eliminator may be affixed to the toilet tank replacing the float valve, then connected to the solenoid valve.

Abstract: A geared mechanical device designed to limit a finite amount of water per flush to a tank reservoir of the common household toilet, providing positive shutoff of flow and anti-siphon backflow prevention. The toilet is flushed, the actuator leaver actuates the flo-control valve by means of linkage to the flush lever. The water enters the back flow chamber into the primary valve chamber then to the flow control chamber, and on to the float valve into the toilet tank for fill up. Force of the water rotates the drive impeller gearably linked to the hold/release lever. On release the flo-control valve closes. The backflow prevention chamber allows the water to pass in the direction of flow and reseats itself when the flow has stopped or if water pressure is lost at any time eliminating a need for a anti-siphon tube. The anti-siphon tube is replaced by a replenish tube to restore water level to the bowl. A float eliminator may be affixed to the flo-control in place of the float valve.