Gross! Also… a substantial portion of the granules get flushed down the rest room. I haven’t researched All those specifically… but I am able to’t think about that it is very good to your plumbing. The granules appear to be plastic. Probably they biodegrade? Idk.. not my fav. We are https://bookmarkingquest.com/story20121090/detailed-notes-on-automatic-litter-box