Hard Water Spot Calcium Stain Remover EXTRA LARGE 40oz

We use BIO-CLEAN Septic product and have been really impressed with what it does; so I bought this for the bathrooms. Works great on the tile and grout on a shower I installed 10 years ago. We have pretty good water here in the Western side of the PNW but there are times it does get a build-up on things. Brings back the shine and smoothness to the porcelain tile and basins.I would like to see an applicator that actually keeps the goop on the tile instead of getting centrifugally forced up the brush though, tough to spread where needed on the round flat attachments.

I was shocked at the effectiveness and the bundle was a steal! I have high iron in my water and the combination of the cleaner and silicone has kept my toilets spotless. Immediately removed hard water stains on glass shower doors. I will definitely buy again!

Product worked perfect for the glass door on my oven. All grease spots are gone and the inside glass looks like new. Also took off the spilled stains on the oven floor. The glass stop stove looks almost new. Works better than the products for glass top stove. I used the same scrubber that is suggested for glass top stoves.My 30 year old laundry top looks much better after using this product. There are very few stains left and it looks great. The faucet is shiny looking like new.My kitchen sink looks better too and marks from my pans aren't showing up every time I put the pan in the sink.The above items get a 5 star. The glass shower doors get a 3 star.The glass shower doors look better, but there are still a lot of hard water stains on the door. I have used 5 applications on the doors and just can't get it totally clean. Same with the bathtub faucet. I will keep trying as this product has a better result than the grocery store products I have used over the years. I use a lot of vinegar for cleaning and this does do a better job on the shower glass doors. The tracks look wonderful after using this product.I will try this product on my sliding doors and tracks once winter is over. I expect a good result.

This worked great for water/mineral deposits in my shower. We have well water. The custom metal, stone, and glass shower is 4 x 4 feet. The shower and well are seven years old. Water testing did not reveal any minerals out of the desired range, but we were unable to get the mineral deposits (scale) off of the interior of our shower with CLR, Comet, Bar Keeper's Friend, Soft Scrub, Ceramabrite, Limeaway, or vinegar. All three brushes worked well except for in the smaller corners and crevices where I had to use a very stiff, nylon hand brush the size of a toothbrush. I mostly used the larger of the three brushes, and by the time I was done, the bristles were about 50% shorter, but none had fallen out. The cleaner has a nice, but strong, minty smell. I used the cleaner and brushes on glass, grout, caulking, metal, stone, and plastic. It took the paint off of the screw heads holding the custom metal, shower door frame, but the frame itself was not damaged. It also took the paint off of the metal drain. I was surprised that it didn't scratch the plastic or metal parts of the shower head, cord, or control knob. It did not damage or scratch the grout, but it did pull up some of the weaker areas of caulking. Initially, I thought it removed/damaged the finish on the metal shower frame, but I just hadn't thoroughly washed off the residue from the cleaner. I'm very happy that I found a way to get rid of those deposits.

Have tried multiple products to clean the tub and shower doors with no success until I tried this cleaner. Leaves surface free of soap scum. Easy to apply.

Works okay. I tried this on several places and my results were varied. It worked really well on my ceramic sinks which didn’t have a lot of buildup. The toilets, which are 30 years old and have had a pumice stone used to remove hard water rings in the past, not so much. Shower door, also 30 years old, it didn’t really touch but then, neither did a razor blade. This is a decent hardwater cleaner but don’t expect miracles. It also takes a good bit of elbow grease as others have stated. Slow and steady is what worked best for me.

This is about the third review I've written in the last 8 years, but I love to read reviews, so I'm writing it for those people!WOW! This stuff is incredible! I just moved into a house that is 150 years old, and has been inhabited by old people for the last 60 years. This house was clean enough, but not deep clean. I am a clean freak. Before taking this top picture I had used comet, comet soft scrub, some green natural stuff, and scrubbing bubbles, and whatever else I had lying around. I just kept trying things. In fact, the top picture was taken while scrubbing bubbles were in it (so the white foam is those bubbles. Imagine that sink being even dirtier because of what those bubbles are covering up, and the scrubbing bubbles also did nothing). I worked on this sink with these drill brushes and solution for about an hour. Nothing else in the house took me that long except this well-used OLD kitchen sink. House was last remodeled over 50 years ago. The sink now has a soft silky feel to it, and it looks SO much newer than it actually is!If you are thinking of replacing sinks or tubs because of hard water stains, I would use this first. It is worth trying. Even with the length of time it might take, it doesn't exhaust you because you're not scrubbing with your arms, you're cheating with the drill.