Gordon: When I had cage diggers I added a 4 inch drain pipe connection to my cages and ran pipe to a dig box full of rice. The dig box was one of those under bed type plasic tubbs that I cut a 4 inch hole in one end of the top to connect the PVC pipe to. I held the pipe in with a length of mechanics wire like a long twist tie. I added small vent holes in the top for fresh air. Every night I pushed all the rice to the center of the box so the digger could come in one side and dig his way to the empty area on the other side. Sometimes I would add small toys for them to dig to. I avoided any toys that could be pulled into the tubes and cause a blockage. Don't use dryer tube, they will tear throught it the first night. -- John Julian [Posted in FML 7535]