Bests & Worsts Reviews from Amazon

Phew! My circa 1960 porcelain bathtub had a REALLY big, nasty buildup of calcium tinged with rust from a very slow dripping faucet. (I gotta dig in and replace the washers.) I tried Barkeeper's Friend, Clorox with Bleach, all kinds of grocery store stuff, even a razor blade and pumice stone and barely touched this stuff. Finally I bought a 128 ounce jug of CLR at the hardware store to gave it a stab. It's no miracle product, but it DOES work. I repeatedly used a spritzer to lay down a good coating of straight CLR on the nasty area, then returned in 15 minutes to scrub with a stiff brush. Each application cut down another layer of calcium and after six applications I finally declared it good enough although it needs more. Be VERY careful to wear rubber gloves and work in a well-ventilated area. I foolishly started out bare handed and today my right forearm feels like I worked it over with sandpaper. Obviously, inhaling CLR fumes is a REAL bad idea. Wear a mask or a cloth around your nose if you are spritzing it on. As an aside, I noticed CLR works particularly well on chrome fixtures, but with some work and patience it cuts even the hardest water deposits on porcelain. Four stars--not a miracle cure, but it eventually does the trick. ------------------------------------------------- UPDATE: Instead of using a spray-on mister, try pouring CLR in a bowl and dipping a stiff brush in and scrubbing. Don't rinse. Wait 15 minutes and repeat until things look the way you want. This works much better than using a spritzer.