How do I remove water marks / stains from a marble countertop?
Our marble bathroom countertop has a few problem areas - most are water stains, but a few are marks on the surface, and it's hard to determine the source.
Looking for best tips/tricks to treat & clean the surface. I'm not certain that it was ever 'sealed' properly as we weren't the initial owners. Is it recommended to regularly seal or treat marble counters?
I cleaned houses for a while in college. We made people with marble counters and showers provide their own marble polish, and most bought something similar to those Doresoom linked to. It's expensive, but anything else risks causing further damage. I've seen it happen. - Chris Jaynes 12 years ago
If its a stain, you could try oxygen bleach: www.stainsolver.com. Acorrding to the FAQ, its safe to use on marble.
How To Remove Water Stains From Marble (Quick & Easy Home Remedy)