How Do You Remove Green Stains From Cast Iron Bathtubs?
My Grandmother had a big, beautiful cast iron bathtub in her house. Of course I was young and to me it looked like a small swimming pool in the bathroom. Grandma kept her cast iron bathtub sparkling clean, but every once in a while it would develop a mysterious green stain, usually near the faucet. Grandma never exactly knew what the green stain was, but she did know how to get rid of it. Green stains on cast iron bathtubs are usually caused by a faucet that drips. The constant dripping of water deposits tiny copper particles and as copper oxidizes, it turns green. The mysterious green stains on your cast iron bathtubs are really copper stains. Measure 2 tablespoons of cream of tartar and put it in a small bowl. Cream of tartar can be found in the spice aisle of a grocery store. Slowly add hydrogen peroxide to the cream of tartar and mix to form a thin paste. Apply the paste to the green stains on your cast iron bathtub. Allow the paste to sit overnight. Wet a nylon scrubber with plain
