I’ve always struggled to get my pet fountain truly clean because brushes just can’t reach inside the pump motor or the internal tubing. These CLYND tablets are a total game-changer! You just drop one in, let the pump run for about 15 minutes, and it flushes out all the hidden gunk and hard water scale. I was worried about residue, but it dissolves completely and rinses away perfectly with no chemical smell or soapy film left behind. My fountain’s water flow is back to being whisper-quiet, and the stainless steel looks brand new. If you have a pet fountain, you need these to actually get the internals clean!