An attachment tool for draining water from a water heater during replacement of the heating element includes an annular mounting member that has an elongate channel attached thereto. The channel has a pair of aligned notches formed proximate a distal end of channel for supporting a bucket or other container. The mounting member is disposed peripherally about the tapping of a heating element receptacle. When the heating element is removed from the receptacle, water drains from the receptacle and through the channel into the bucket supported thereon.