Zep Acidic Toilet Bowl Cleaner - 32 oz (Case of 4) - ZUATBC324 - Experience the Ultimate Cleaning Power with Our 2x Thicker Clinging Formula, Designed to Deliver a Professional-Quality Clean

This stuff is some kind of magical dragon fairy product! It got all of the rust and buildup yellow calcium stains along with soap scum off my shower immediately sold it on a TikTok decided to try it so I bought it in bulk. I highly recommend this product.

One came with a whole in the bottom so it leaked everywhere, but it wasn't a big deal i was still able to use most of that one bottle. Other than that, great product! I used it on my shower walls, they were a dirty beige color instead of white from the previous tenants, this made it a little more white. I spread it on the shower walls and tried to evenly distribute it, let it sit for about 5 mins, then wipe or wash it off. Use caution, it can burn the skin a little bit, its more acidic than regular bleach. Don't leave it on too long because some parts of my shower are a slightly blue color because the product is blue

I have VERY hard water and this is the only thing that works. I empty all water out of toilets, squeeze some in,wait 15 minutes. Then give it a scrub wth brush and all calcium is gone!!

Woweee! I'm not going to post the picture because it's yuck, and I did not get a before when it was at it's worst - but this stuff is fantastic. The toilet had brown and black scale on 3/4 of the inside. I really thought it was going to take days of attempts and maybe not work at all. I used almost 2 full bottles and the toilet is super white clean now. I let the product sit with the existing water in the toilet for about 10 minutes and then scrubbed. Added more product, scrubbed more, did that a couple more time. Flushed. Then I plunged the toilet to remove most of the water and added another half a bottle. 15 minutes later I was able to scrub all the scale away. Took about 1-2 hours total process with soaking time. Highly recommend for those seemingly impossible jobs.

Zep toilet bowl cleaner is exceptionally good at removing yellow water stains from any porcelain entity - not just toilets! Our well water stains everything - but either Zep I keep the porcelain white!

Fights toilet bowl stains caused by our water system. ZEP is super!

It is truly magic, it worked so well on our shower, shower head, and the wall in the bathroom that has had a layer of rust and other stuff from the maintenance man cutting a cast-iron tub in half. we could not get the crap off the wall for 2 years and 10 mins and boom we have a swatch cleard off and looking so good. The wall was so orange from the rust, and as you can see in the picture, it worked great. I have just had the oomf to get it done with my medical issues.

This stuff is AMAZING! I saw a reel where it cleaned hard water minerals, I was skeptical but took the chance, unbelievable results!!