Gray Water Stain On White Carrara Marble Countertop
White Marble Countertop Stain
My contractor installed our bathroom countertop, which is white Carrara marble, without sealing.
After a little use we noticed a darkening of the marble around the faucet.
We think water has leaked under the faucet and stained the marble where the installer had cut it to place the faucets.
Anytime we use the faucet more water seeps into the marble around the faucet housing. Is there a way to "air out" the water stain?
And then seal the faucet area so that this will not happen again? Or are we stuck with gray areas around both faucets?
If you have a leak from the faucet then of course the cabinet under the sink will be wet too. If you do have a leak then replace the faucet or have your installer fix it, etc. to stop the potential source of a problem.
I'm thinking it's probably not a leak. Water by itself will not stain marble. Impurities in water could, but not in a short time.
It's most likely caused by a caulk or plumbers putty your installer may have used around the faucet.
Remove the faucet and see what's going on.
To remove the stain, you'll have to make and apply a poultice.
You'll find complete step-by-step instructions on how to remove this and any other type of stain in the Removing Stains Manual