Gross! Also… a considerable part of the granules get flushed down the toilet. I haven’t investigated People specifically… but I am able to’t envision that it's superior in your plumbing. The granules seem to be plastic. Probably they biodegrade? Idk.. not my fav. We are wanting in to other units. https://petskyonline-onlinestrore.blogspot.com/2025/07/petkit-purobot-ultra-premier-auto.html