We have very hard water. And aside from being impossible to drink, it wrecks havoc on anything white; clothes, porcelain, you name it. We had horrible rust stains in our sink, bathtub and toilet. At first, the only thing we found that would take care of it was a toilet bowl cleaner with hydrochloric acid (also called muriatic acid) as the main ingredient. It was so toxic, that I couldn’t even use it when Gayle was in the house, it hurt her longs so badly. We hated using it, and needed something else, something natural and safe.
And then, we discovered baking soda and vinegar. Very safe, not much smell, and effective! It takes a little elbow grease, but it’s worth it. The procedure we follow involves making a paste with the baking soda and water and using it to scrub the stains. After some scrubbing, pour the vinegar over the baking soda, the bubbling action helps loosen the stains, then, if it’s needed, do some more scrubbing.
For incredibly tough stains, you can also use citric acid. Again, make a paste with the citric acid and water and leave on the stains overnight. You can purchase citric acid at a wine shop or in the canning aisle of the grocery store.
If you struggle with hard water stains or rust stains, try these all natural alternatives. I think you will be surprised with how well they work.