Abstract: A two-part tool for lifting from a ground surface a reservoir located substantially adjacent a wall, the reservoir defining a reservoir bottom end supported on the ground surface and a reservoir top end substantially opposed to the reservoir bottom end. The two part-tool includes: a wedge component defining a wedge component first end and a substantially opposed wedge component second end, the wedge component defining opposed first and second contact surfaces each extending between the wedge component first and second ends, the first and second contact surfaces diverging from each other in a direction leading from the wedge component first end toward the wedge component second end; a jack component, the jack component including a base, a lifting member operatively coupled to the base so as to be movable relatively thereto, and an actuator operatively coupled to the lifting member and to the base for selectively moving the lifting member relatively to the base.