CRL Bio-Clean Water Stain Remover - 16 oz Bottle

I purchased this product to clean the water spots off of my glass shower door. I went off of the positive reviews already posted. My home is for sale and I did not want buyers seeing that door looking crusty while the rest of the house is immaculate. Not cool. Anyway, after some trial and error, I figured out the best way to remove the spots was to use a dry, non abrasive kitchen sponge. Just apply the product and scrub like you mean it. Like your life depends on it. You can actually see the spots disappearing! It took me about 3 applications to get it all off, though. I am a woman, so I'm sure that a little elbow grease from a man would have only taken 2 applications. The product is actually a minty scented cream that will give you a headache if you don't use a good mask! I didn't use gloves, but probably should have. My skin is still intact, which is great, since according to the label, this is an acid. The ONLY downside is that I noticed tiny microscratches on the glass door. Now I don't know if this was from scrubbing or what, but these are not noticeable unless you are looking for them. Sure beats a nasty glass door. They were too tiny for me to take a picture and have them seen.I have also used it on the ceramic tile, our copper mailbox and a few other random places, with great results! Will be ordering another bottle. Shipping was fast and arrived a day earlier than expected.

The glass company that installed our shower doors recommended this product to deal with our hard water stains . It works beautifully . I tried several products but only this one erased the hard water and soap scales

Came highly recommended and didn't disappoint . Easy to apply to shower door, when rinsed off the shower door looked brand new.

It didn’t take the slum off of Pyrex though.

It removed the water stains from my glass bathroom sink and now it looks new. I had been thinking of replacing the sink, but not now.

Paste like material, toothpasteDid not work and glaaa is the same

So get this, for years I have had hard water stains on both my truck and boat windows due to my neighbors irrigation sprinklers and wind blowing water onto both of them. Yes you say just move my stuff, well needless to say I don't have room anywhere else for them. Anyhow I have also used a number of products for this and many products not intended for this as well as the old razor trick that can ruin your windows permanently if not done right. I have had ZERO luck until this stuff. My boat was the worse of the two and seemed to be a lost cause. I wish I would have taken pictures as I had 7 full years of this crap on my windows. BUT after 2 applications applied by hand and some elbow grease they literally look like new. It cleaner and junk washed off with ease after working it in also. I used the CRL sealant afterwards using a microfiber towel from Harbor Freight store (nothing special and cheap) sprayed it on and rubbed it in covering the window until it was crystal clear. Now when my windows get wet it beads off better than anything I've seen before and wipes away any small drops left like nothing, even with a semi wet towel. So in short I have no idea why others posted having issues with the product or it not working but if this stuff doesn't work for you I would either buy a new window or glass whatever you need and or live with it. This is again HANDS DOWN THE BEST HARD WATER STAIN REMOVER EVER.

I went with this based on a clients recommendation. We both have well water and no matter how hard we try to be diligent and squeegee the shower after each use the water spots remain! My husband is in charge of cleaning the shower (take note ladies, you can ask him to do it too! LOL) he was very successful the first time on the areas that got the least water. However it has taken 3 serious tries to remove it from the actual shower door. But...it DOES WORK if you are diligent and persevere! It has been 10+ years of water spots and squeegeeing so I didn't think it would be easy. I think an automatic buffer would have been easier but...not complaining when I see my man going to town to make it sparkle. :0) Just like new glass shower walls=you know what! LOL J/K