Bio Clean Hard Water Stain Remover 40 oz. (20.3 oz.)

I live full time in a luxury RV. After about 2 or 3 years, the toilet was not staying clean. Although I didnt have other signs of it, I figured it had to be due to hard water scaling. The porcelain bowl seemed like the finish had been ruined on it. Anyone thats used an RV toilet knows that they use very little water. They flush more on gravity than on the principal of water. So if the sides get chalky stuff sticks and even stains. Its beyond gross. But you also have to take the seals into account. So harsh chemicals are out. Tearing down a toilet to replace the seals ranks up there with bikini shopping in February... It may be necessary at some point, but its not going to be fun! Since I refused to use harsh chemicals, I knew the finish hadnt been ruined by anything. I had tried leaving it full of vinegar overnight, but it didnt resolve the issue. It didnt even remove all the staining. Neither did my usual mixture of laundry powder, borax, powdered water softener, and laundry soda. So... I decided to give this a go! I drained all the water out and slathered this on. I let it sit about 20 minutes. Then I added a cup or so of water, and used my chosen implement of destruction... A drinking glass scrub brush. No buffing with a cloth or anything. It was much improved! So much so that when I decided to repeat this tactic, the product, which is quite thick, wouldnt cling to the sides... It just slid down to the bottom seal. But I used a piece of paper towel and reslathered it all over. Let sit. Did the water and brush thing again. It has a faint mint smell, so it doesnt require having to open all your windows and turn on the roof vent fan. A deodorizer it isnt... But thats not what I bought it for and really appreciated its mild scent when my head was 8 inches away from a toilet full of it! Omg. Its like my toilet is brand new. Both the porcelain bowl, as well as the vinyl seal flap! Its so slick, you cant even get toilet paper to stick on it if you wanted to. Im definitely impressed! And it doesnt seem to have caused any harm to the rubber seals or vinyl flap. Now, I admit that it was only $12.99 when I bought it. I do think that price was more than fair. Im not sure Id pay $20+ for it. But then, Im on a fixed income and watch every dollar. But compared to the outrageous price a new porcelain RV toilet would be... Its definitely a bargain at almost any price. Id definitely recommend trying it on hard to remove scaling and the stains that come with it from rust or such. From what Ive read, the problems folks have had seem to come from being too aggressive with it. So being lazy with this stuff is the way to go... Which works perfectly for me!

I had tried various methods to remove water spots from our shower glass over the last year with no success. I was somewhat skeptical of whether this one would work as a result. I used as directed and ended up with spotless glass that looked like the day we had the shower installed. Im completely sold and would highly recommend.

Great quality for the price. As described by seller.

I’m so impressed, I gave a bottle to my house cleaner to use for her other clients. The cleaner actually lasts for the 3 months, as claimed!

Ive tried dozens of different name brand products to clean mineral hard water deposits and soap scum, and its very very difficult. This product still requires elbo grease, but only a fraction of the effort required by most other products, including vinegar and/or baking soda. I think with regular use, this can become a very easy way of cleaning hard water deposits.

I am impressed at how fast and how well this works. Prior to this, nothing at all worked. My glass top stove looks amazing!

It’s okay. It didn’t really remove the hard water stains from my shower as well as I’d like. The residue was still evident after rinsing several times. Would I return it though? No. Would I buy it again? Also no.

Not sure if works or what have to play a bit with it to see

Tried all the other tricks with vinegar, baking soda, lemon etc. This stuff is like a smooth green paste that is easy to work with. Like others say, you do have to do some rubbing before it starts to take the rough stains away. At first you feel and hear the roughness and then it slowly feels smooth. Then when you wipe it away you can’t believe it!! Super stoked!! Did a 10 yr old shower glass enclosure that I was about to pay to be replaced. It worked fine for me with paper towels or sponge. I had an issue with glass scratching when I tried a drill brush attachment so I stopped using it and went back to paper towels and sponge.

Incredible. Removed hard water stains from windows without even rinsing in minutes. Vinegar wouldn’t touch these stains either.