Our well water contains heavy minerals and iron . I’m always battling rust stains especially in the toilet tank . I have been pleasantly surprised at how well this device is working . The tank will never look pristine and white but it seems to be so much better . I am pleased with this purchase .
Well, so far so good! I've had KK in for about 3 weeks now. No water rings! Of course you still have to "clean" the toilet but it's much easier now.
I'm glad I decided to get one for each toilet.
Thanks Krazy Klean!
So far so good I bought 3 of these and they all work just fine they keep all my toilets Very Very clean
The toilet tank is "crystal clear" no hard water build up at all, and the water line in the bowl is gone!