Bio-Clean Water Stain Remover - 16 oz Bottle

I have tried every other cleaner known to man for water stains, and never found one, until Bio-Clean! It's best to use Bio-Clean with no added water, using a dry rag on a dry shower wall, scrubbing in very small circles over a 6-inch square section, then wiping off the cleanser with a damp rag. It takes about 2-5 minutes per 6-inch square, depending on buildup. It took me about 45 minutes to do a 4 foot square section on the glass shower door that had light buildup. I had a glass shower installed last year, and they gave me the Bio-Clean cleanser with the shower and told me how best to use the product. I have since bought the product again via amazon. Works fabulous for both water stains and soap scum on glass and tile (on the bottle, it specifically states it will remove soap scum - and it does). Although, I use ROG 3 spray for soap scum (because it works much faster), and then if water stains remain, I use Bio-Clean. We have hard well water. And this removes the water stains, which will build up every few months, if we don't use the daily shower spray. It gets the glass perfectly clear, and the tile bright and shiny!

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.

We have such hard water stains on our shower doors and it's SO HARD TO CLEAN. The Bio-Clean did the job quick and easy. I tried using it on our shower grout and it did okay but not as well as the doors.

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.

If you have calcium build up on your shower door, Use this and a white scotch brite pad 3x3 a little water on the pad. My glass guy told me about it 10 years ago. Amazing stuff.

I meant to order the treatment CRL sells, which I have been using for years on my shower walls, floor and glass doors. Twelve years after it was installed everything still looks like new. Anyway I ordered this by mistake so tried it out on water spots on my stainless steel kitchen sink and it took them all out and quickly. Soft scrub would not do the trick. I decided to buy this for my brother who was tackling a very discolored fiberglass shower/tub. He had tried every product out there and given up hope. He said it took some rubbing and was quite a job but it totally took out all the stains/discoloration so that the fiberglass now looks sparkly and new. Absolutely amazing! Every home should have both products. I will be trying it on a sliding door next. The first two pics show the difference between the part of the shower wall and the tub that was cleaned and the uncleaned part. The third picture is the tub after it was completely cleaned. Amazing!!!

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

This stuff is awesome! Took the water spots off my sliding shower door