Hard Water Stains on Porcelain?

shoe

January 4, 20110 found this helpful

My bathroom fixtures are 40-50 years old. For at least 25 years, I've been cleaning them with a powdered cleanser called Zud. If you've had your problem for a while, wet down the stains and shake the Zud on flat surfaces. If it's really bad, use wet paper towels or newspapers to cover it and keep it wet longer. For tub sides, ceramic tile, or other vertical surfaces, use a wet cloth. Sprinkle a section of the cloth with Zud, then fold it together so the Zud is wet. Reopen and wipe generously onto vertical surfaces, then go away and just leave it alone. After 15-20 minutes, go back and wash it off. If there are problem areas, do it again, leave it longer. Once the problem areas are cleared up, the job becomes much easier if done with reasonable regularity. Zud comes in a canister-type container like Comet or Ajax. Good luck! --shoe

Lilac
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January 4, 20110 found this helpful

A bottle of Lime Away should do it. It is sold everywhere.