Dry with a soft cloth.
Water stains on marble sink.
Buff hard water accumulations using.
Fill the marble sink halfway with warm water and add 1 tablespoon of mild dish detergent or 1 4 cup of ammonia.
It could also simply be water absorbing into the marble which will darken the area to a more gray color.
These stains can be the result of a water glass that was left on a marble countertop for too long or from hard water buildup around sinks and showers.
Spray the polishing powder 2 to 3 times with the spray bottle to dampen the polishing powder.
Above the etch mark wipe the surface clean of any grit of dirt.
Unsure which marble polishing powder.
Most likely the dark stain you are seeing around the sink drain is either from mold growth or a rust stain developing.
But pure water does not stain marble sinks or countertops or tile.
Mold can stain marble bathroom countertops floors etc.
Add the polishing powder.
I mixed about a tablespoon no i did not measure of the barkeeper s friend with a few drops of water in a small pyrex glass bowl to create a paste.
Water stains are yet another common stain that occurs on marble.
Cover the area with plastic wrap for 24 hours.
Rub the paste into the stain with a soft cloth.
Mold is a common problem in many bathroom settings.
I found a way to remove water stains from marble successfully.
Finally i wiped it off with a damp paper towel.
Difficult stains remove more difficult stains and water spots with a thick paste of baking soda and water.
Marble countertops and other surfaces are no stranger to ink stains.
Then i took an old toothbrush and scrubbed it on in the affected areas.