Abstract: This invention in its most basic form is a reservoir container that is adapted to hold the rinse water from the final rinse cycle of a washing machine and a means for conveying the rinse water after being used in the final rinse cycle of the washing machine into the reservoir and the means for returning that water to the wash machine for the beginning of the wash cycle of the next load. The reservoir in the preferred embodiment for a household wash machine holds approximately twenty-five gallons. It is hooked to the washer drain through a two way valve. During the wash cycle this two way valve allows the water to flow out of the washer and into the drain. But for the final rinse cycle the valve directs the water from the washer into the reservoir. The reservoir is also hooked to the incoming water source of the washer by a two way valve.