New FloodStop for Dishwasher/Toilet/Water Filter FS 3/8-C v4 AC Power Adaptor (or use 4 X AA Batteries as Primary Power Source, not included) The FloodStop valve is connected to the angle stop and supply line Water/leak sensor is placed at the base of the appliance or fixture (Dishwasher - Toilet - 3/8" Icemaker - etc.) Water on sensor closes FloodStop valve and sounds alarm Valve stays closed until problem is attended to and system is reset