3M Fine 9089NA Drywall Sanding Screen, 4 3/16in x 11 1/4 in, 2-Sheet Grit, 2 Count

I read it somewhere says this works on the toilet water line, I decide to try. We all know about the hard water line, I tried all I could, vinegar, nail polish remover, scratch it.. none of the ways that I could think of worked. This product is heaven! All you need to do is gently rub on it, then you are done! Plus It doesnt scratch off the white of the surface at all!

The perfect thing for cleaning hard water stains out of sinks and toilets.

Lightly used with Barkeepers Friend and water, removes hard water stains from porcelain toilet bowl without damage. Quick and easy - just use a small square and wear rubber gloves.

Easy to hold and use. Works great!

This is helpful (in combination with a shop vac attachment for sucking up dust) to level out joint compound. Just know that itll leave lines (see picture) - Ive tried different motions, but no mater how I do it, lines are left. Ill have to go back over that with traditional sand paper. Overall, though, Im satisfied with what I got for the price.

I had tried everything to clean the disgusting stained mineral build up in my toilet. Only this worked. Sure it takes a little elbow grease, but trust me, when all else has failed, get this. I also read its good to use on foot calluses. Yup it works there, too - much better than any other pumice stone, pumice bar, foot rasp/grater or emery board applications. Then I found it in the hardware store for next time, but I think this will last me a good long while.

I used to clean of my daughter’s toilet bowl. I used gentle motions to clean standing water stain rings. I didn’t want to scratch the porcelain. It worked pretty well.

OMG I Just used this finally on my toilet bowl. I have tried everything to get the stains off. THIS WORKED! Wish I had taken a before and after.

*Took the picture half way through so you could see the difference and what I started with. I used a very small 1” x 3” piece and toilet water (no cleaner or pre treatment) and took me less than 10 minutes. I learned about using this stuff to clean porcelain from someone who cleans homes professionally. It feels/is very abrasive, yet DOES NOT scratch the porcelain itself. PS I used ONLY this and the toilet water to clean **NO fancy toilet cleaner or pre treatment of any kind** Wish I’d known about this years ago. Will definitely purchase again but won’t need to for a good while, since I used a tiny 1” x 3” strip for the whole toilet and could’ve gotten away with less. UNRELATED (But also amazing..) Use undiluted vinegar with 1oz dawn dish soap in a spray bottle for your shower cleaner. Leave it on for a bit while you do something else and scum comes right off. No scrubbing. Learned this from the same person and it’s fabulous. You’re welcome.

Ive been battling some hard water stains in my toilet, and have tried a variety of online recommendations ranging from vinegar to Borax, with only minor improvement. I then tried the suggestion of drywall sanding screen and Bar Keepers Friend. It really works, and doesnt scratch the porcelain. Maybe not the intended use for this product, but it worked wonders!