Abstract: Apparatus having a rectangular hopper converging downwardly to a bottom opening. A rectangular support frame supports the hopper on the ground to allow loading of filler material into the hopper by a front end loader tractor. A hanger suspends the hopper and frame above the ground when the hanger is engaged by an overhanging vertical support, such as a back-hoe or power shovel. The suspended apparatus may be inserted into a trench. A lever is connected through a linkage to a slide gate covering the bottom opening, and is manipulated by an operator to selectively move the slide gate to control discharge of filler material through the bottom opening.