Gross! Also… a substantial portion of the granules get flushed down the rest room. I haven’t researched Those people particularly… but I'm able to’t imagine that it is good in your plumbing. The granules seem to be plastic. It's possible they biodegrade? Idk.. not my fav. We're looking in to https://gogogobookmarks.com/story20210476/a-secret-weapon-for-robotic-pet-cleaning