ZepAcidic 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

I’m a rental property cleaner, and we had this one toilet that was stubborn—like, it laughed in the face of every cleaning trick we threw at it! Bleach? Pfft. Every potion and scrub in the book? Nope. We were this close to tossing it out when someone whispered about this magical stuff. I was skeptical—c’mon, I’ve tried everything! But I followed the directions, added a little extra flair for good measure, and let it chill for 10-20 minutes. One swipe with the brush, and poof—those stains vanished like they owed me money! That toilet’s sparkling so bright inside, it’s practically winking at me now!

Nothing removes hard water build up like this stuff. I need to see if it's safe to use with my septic tank - but I almost don't care, it works so well. I barely have to use a brush, just squirt this under the rim before I go to bed at night, and I the morning the toilet is 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

this stuff is FANTASTIC! I've bought soooo many products to get the hard water Stain from the bottom of my toilet and this worked like magic!!!!!! very pleased!

Worked welk but not quite as advertized. Works eell enough to make it a good purchase.

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!!

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!