Have had them in our 4 tanks for 2-3 weeks and bowls are clean!
This product does what it says it does! My toilet bowl has never been cleaner! Highly recommend.
Here in SWFL we get our water from under the ground. Since using Krazy Klean there have been no more stains. Thank You!
It’s actually works. Can’t be happier. Don’t expect it to go for months without having to scrub the bowl but it definitely stayed cleaner for longer and a quick scrub is all you need.
Have not had the product in use long enough to review it.