Abstract: An assist device is disclosed for use with a drinking water dispenser of the type utilizing a large inverted water bottle mounted in a recess or reservoir located on the top flat surface of the dispenser. The assist device is used by a person in replacing the water bottle on the dispenser. The assist device includes a base member for resting against one side of the dispenser in a horizontal orientation with respect to the floor supporting the dispenser. The base member includes a recess into which the bottom of the water bottle is set and an elongated support member having an upper end which is secured to the base member and a lower end which rests on the floor when the base member is disposed against the dispenser. The support member spaces the base member from the floor an appropriate distance so that the top rim of the water bottle is adjacent an upper edge of the dispenser.