Gross! Also… a substantial percentage of the granules get flushed down the bathroom. I haven’t researched Those people particularly… but I'm able to’t picture that it's fantastic to your plumbing. The granules seem to be plastic. It's possible they biodegrade? Idk.. not my fav. We're searching in to other systems. https://bookmarkchamp.com/story20132251/5-simple-techniques-for-petkit-purobot-uae