Gross! Also… a substantial part of the granules get flushed down the rest room. I haven’t researched These specifically… but I'm able to’t envision that it's very good to your plumbing. The granules appear to be plastic. Probably they biodegrade? Idk.. not my fav. We've been searching in to other https://bookmarkahref.com/story20190962/a-review-of-robotic-pet-cleaning