I am bumping this because someone asked about lining this type of box with a trash bag and this link has where I talked about doing that when I had this litter box years ago. Just to clarify, I put the plexi-glass box INSIDE of the trash bag and I can not stress enough how important it is to press the bag cleanly against every bend, side, and corner of the box so that assumes the shape of the box and won't catch the rake. I never had a single problem with the rake catching but we did it with two people and were very particular about it.
Dawn
