I was sceptical. I've never had issues with water harness rings in toilets prior to this house. We put in a softener but still the problem persisted. I removed them with a pumice and installed Krazy Clean. Only been 25 days but so far no sign of the hardness rings coming back.
Well water hard stains are a thing of the past. Recommend this product.
Wow! It really works better than anything else.
We have well water that goes through a whole house system, however the water in the toilet tank has always been black. We weren’t ever able to even see through the black water in tank. After a week of using this, the water in the back of the tank started to clear up AND after a month of use, there’s not a single stain or ring in the toilet bowl. So far, it’s been a great purchase.