Lenicany 6Pack Pumice Stone for Toilet Cleaning Bowl Stick,Powerfully Cleans Hard Water Rings，Calcium Buildup & Stains, Suitable for Cleaning Toilet, Bathtubs, Kitchen Sink, Grill

I have really hard water where I live and these calcium stains have been there for a few years. After 2 pumice stones and around an hour and 10 minutes of scrubbing, the toilet looks a lot better. Theres still some stubborn spots left right where the water comes out that dont look like theyre budging. But Im hoping eventually the stones will get out all of the spots. This is the only thing thats even made a dent in these stains so Id recommend giving them a try. Just be prepared to scrub for hours if the calcium build up is really bad.

Really works as advertised. Make sure you get it wet first or you risk scratching it. Even if it is wet, it will make a scratching noise (don’t worry- as long as you wet it, it will not scratch the toilet). It will take a lot of elbow grease for older buildup but it took the calcium buildup off of my newer toilet (3 years old) within 15 minutes.

Did exactly what I wanted clean soap scum off sink....

My toilet was very hard to clean, with getting the stains and stuff out but this had my toilet clean like it wasn’t even there. You do have to put some work in with scrubbing but it’s worth it. Its better than a toilet brush that can’t even get the stains out.

We live out in the country and have a well so naturally our water is hard. There were some spots in the toilet that I tried absolutely everything to get the hard water stains out. These worked like a charm it was like magic.

Unfortunately a bit like nails on a chalkboard. But, makes cleaning hard water from the toilet bowl so quick it hardly matters.

Was able to get that ring off. Did not scratch the toilet. Will be purchasing again.

Convenient and easy to use!

A few minutes and all rust stains completely gone. No scrubbing or no chemicals. Super easy.

Why am I using a toilet scrubber... this is a million times better. If this scrubber doesnt work, I recommend taking your toilet out back and using muriatic acid with gloves and a mask. But for all other mineral build up that hasnt reached that point, this scrubber is the best. The dissolve fairly quickly though. Each stick last me about 3 to 5 minutes worth of scrubbing.