Instant Power Toilet Tank Cleaner, 1 lb

This product worked for me. I am going to guess there are a couple variables for success. 1. how old and how caked on the rust and dirt is. 2. The water composition(hard or soft) 3. the material of your tank. These are my educated guesses. I followed the instructions and I had great results. I have included photos for proof. FYI - I changed the toilet handle so you will see two different handles but this is the same tank.

We have 2ppm iron in our water, waiting to get the issue resolved. In the meantime we had a toilet replaced and within 3 weeks the tank was badly stained. I sprinkled this stuff in the tank (used A little less then recommended because the tank was only 3 weeks old) left it overnight, flushed in the morning and all trace of iron was gone. I dropped in an Iron Out Tank Tablet to keep it clean and its still clean 2 weeks later. Oh! And after the morning flush it cleaned to bowl as well. I will be buying more because I have 2 other toilets that have been stained for years and I think they will need 2 or more cleanings.

WOW. I put 1/2 a bottle in a guest bathroom tank that was completely brown and rust stained from FL water. Checked it about 7 hours later and the tank literally looked new! I'm so glad I found this product. I thought I'd have to scrub the tank for hours, nope. Just pour 1/2 the bottle in, leave it in overnight without flushing and in the morning you will be thrilled. BUY THIS!

I began using this product last evening, allowing it to sit overnight. The following morning, I got to check on the results, and I was floored! Not only did Instant Power Toilet Tank Cleaner, turned my tank from very brown to very bright; the deposits from the toilet bowl, was gone! I am unable to show the before photo of my tank. Before Instant Power, my toilet tank was filthy all over. Now my tank and bowl is a lot cleaner; no more rust and calcium. I'll certainly buy this product again, in the future.

put in tank overnight in toilets went from solid rust to looking like new again. not sure how it could not have worked for one reviewer. this stuff is like a miracle in a bottle for your toilet. these are two different toilets but the clean one was much worse pre treatment than the other toilet. after/before images after overnight soak and no scrubbing.

My 3 tanks went from dark brown to white in less than 2 hours. I will keep this product on hand as for periodic cleaning. Absolutely recommend this product.

2 of our tank walls looked black when we mixed this product in. This morning the walls of the tank were white, looked like new

Can't say. Had to use vinegar while waiting for this product, to clean my toilet tank. Saving this until need it. Price was reduced by half so is that good? Idk.

It was hard to tell if this actually worked. There was some color change in the tank, but still has some stains.

Followed directions and used the cleaner in two toilets. Left one for about 10 hours and the other for two days. Saw no improvement in the tanks, but the plastic parts did look cleaner. Don't waste your money.