I would give a 5 star but I still notice a slight ring at water height in bowl. But In Krazy Klean’s defense….I have EXTREME hard calcified water!! So far, I’m ‘ impressed!! 👍
I got two, one for each toilet. The newer toilet looks like new; but the older one still has a little discoloration at the bottom of the bowl, no ring thou; maybe I should’ve scrubbed the tank itself? Overall I am happy and hope the 2nd toilet continues to improve. It’s less than a month since I dropped them in the tank.
The Krazy Klean works exactly as the company says it does, I cleaned our toilet and dropped it into the tank. Usually, I would have a slime build up in a couple of weeks and need to clean again, I have not had a slime or mineral stain come back. We are very pleased with Krazy Clean.