Marble Shower Pink Stains

by Monica
(Colorado Springs)

QUESTION:

I have a 100 year old Carrera marble shower. There is a pinkish stain growing up the walls from the bottom of the shower. Not sure what it is - and how to tackle getting rid of it.

ANSWER:

I agree that the cause here is not too obvious. My best guess is that the pinkish substance you are seeing is a pre-cursor to mildew.

However, it is accumulating rather oddly on the wall surfaces rather than in corners and seams that gather more water.

First, I'd quit using the shower for few days to let it dry out. Then check your grout seams for cracks and voids. It could be that water is getting behind the marble, the marble is absorbing it and bathroom mold and mildew is forming.

I'd also recommend using this marble-safe Bathroom Mold & Mildew Remover to clean the spots.

If the mildew remover doesn't solve the issue, then I'd say water behind the marble is the most likely culprit, so you'll have to fix that problem (repair grout/caulk, etc.) and then you can get the stains out following the instructions in the Removing Granite & Marble Stains ebook.

Good Luck,
Ryan

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