got rid of the toughest hard water deposits in my toilet
like many reviewers here, i had tried EVERYTHING to get these hard water deposits off. this apartment has hard water and i tried vinegar on the toilet, but it didn't work. bleach, CLR, Lysol toilet bowl cleaner, etc. -- none of that worked. but i tried this and with very minimal effort, it just came off. i was about to give up. it's not like a hard pumice stone but it's very "soft".
Rating: 5 stars