Very effective cleaner for the toliet tank. I have had a problem with a rubber tank valve seal deteriorating and while looking to find a replacement part saw comments saying your product destroys this Mansfield Rubber Seal 620-0030. Is this true?

When the disc has disolved, it becomes apparent. The toilet needs more frequently and deeper cleaning. We have hard water. Perhaps this isn't true for those with soft water.

We have hard water, so it is hard to keep the build-up out of the bowl. The Clorox bleach tabs help keep the bowl sparkling clean even between deep cleanings!

Not only do the bleach disc's not do a dang thing to help keep the toilet clean & white but they also make my house smell like Bleach 24/7! I will return this garbage.

Lets face it I hate cleaning the toilet. With the clorox bleach cleaner I can leave it in the area and the cleaner cleans the toilet area. I come back later and give it a quick swish... but I don't clean like a used to.

I hate cleaning toilets, that is why I rely on Clorox Automatic Toilet Bowl Cleaner to do it for me. I have never had an automatic cleaner work as well as this one. It takes care of one chore for me hassle free!

I have used these consistently for as long as I can remember. When I forget, the toilet dirties quickly. This keeps my bowl clean and simple to keep up.

These actually work. I can always tell when they have dissovled because my toilet will start to get build up. My husband even notices. I will not be without these. They save lots of scrubbing..and we have hard water.

I cannot stand a dirty filthy toilet. Then I found Clorox Automatic Toilet bowl cleaner and it saved my life. Now I know it is clean and makes me feel better. I just love your products.

I live in a dorm room in college and my roommate and I had this toilet with weird black stains all in the bowl. We put the Clorox Automatic Toilet Bowl Cleaner and we were both very surprised at how well it worked!