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Stains from rust and other deposits can form on the inner surface of your toilet, bathtub, and sink, especially if you have
hard water. If your water has a high content of dissolved iron and other minerals, eventually the minerals deposit on your bathroom surfaces and cause stains.
Most bathroom cleaning products are not effective at fully removing hard water and rust stains from porcelain. Harsh chemical solutions exist to dissolve these stains, but why use toxic cleaners when some old fashioned scrubbing will do the trick naturally?
Pumice is a naturally occurring volcanic rock that is most often used to exfoliate dry, dead skin from feet. Pumice stones are available in nail care or foot care sections of large supermarkets or at drugstores and nail salons.
A pumice stone works wonders at removing rust stains from porcelain. Don't worry - the surface of your porcelain toilet, tub, or sink will not be damaged (the surface of the porcelain is much harder than the pumice stone).