Pumice Stick to the Rescue
Bathroom porcelain fixtures may turn brown, especially if you live in an area using hard or well water. So often cleaners and others give up on the fixture, believing it is permanently ruined. These dark areas are rust stains. To remove these stains, use a pumice stick and rub it back and forth on the stain. It should remove the stain completely. If not repeat using the pumice stick, the clean again with a liquid cleaner and a soft scrub brush. Always be careful not to rub too hard, it can scratch the porcelain.
More Cleaning Tips
Information provided in these cleaning tips is of a general nature and may
not be appropriate in all situations. Consequently the author makes no
representation of warranty as to the completeness, correctness, or utility of
the information contained in the cleaning tips as it may apply to a specific
situation. Therefore, readers are encouraged to consult with ProSTAR
industries for specific information and guidance.