Klean-Strip® Green™ Muriatic Acid, 1 Gallon

Excellent product!I purchased this for removing hardware stains from calcium build up in the bottom of a toilet.A little bit of the product works wonders, I poured it in directly into the water in the bottom of the bowl, came back after letting it sit all day while I was at work and voilà, makes your porcelain throne look brand new again, without damaging it.

Very good muriatic acid. I use this for cleaning metal and it works great as long as you don't over do it. Good product at a fair price.

I bought muriatic acid to help with the ph in the pool. It works great. I put about a third of the liquid wait about 15 minutes and the ph is lowered. It helps to keep my pool water clear.

Works pretty good

Use this to remove rust and clean small parts. It still smells when using, so use with caution and wear safety glasses + gloves. Also, don't use it on anything aluminum. It will eat it.

I went through 4 gallons of the new safe Drano Mas Gel that is useless. Let the Drano set for 24 hours on the last gallon and nothing. The old stuff use to smell and smoke, the new stuff is useless. I read an article that mentioned Muriatic acid so I tried it. Bingo, drain totally opened up with 1 quart of the gallon. Would definitely purchase again. Came fast and damage free, packaged well.

Why did you pick this product vs others?:After researching what would work on our toilet, which had severe staining, I believe iron, but unsure, and hiring a professional cleaner who did nothing to help the toilet bowl...plus my husband stated the toilet smelled like urine all the time, I purchased Muriatic Acid. It did not disappoint. I poured a cup or two into the toilet, and it started working immediately. The before picture shared, was when I remembered to get a picture and about 30 to 60 seconds after I had already poured the acid into the toilet. I am interested to see if maintaining a clean toilet, weekly, will now keep the staining at bay.

I just installed a swimming pool and didn’t really know what I was buying. This says not to use it in pools but I took the chance and it works great. My pool is 12,000 gallons and I have found that it lowers the pH .2 for every one cup used. My pool is saltwater so it uses a lot of acid.