Black Stain on Fiberglass Shower
In one area of my fiberglass shower enclosure, I have a black stain. It seems to be resistant to all cleaning products. What can it be? What will clean it?
By Mar from Kenilworth, NJ
Answers: Black Stain on Fiberglass Shower
Read answers for this question below.
Sounds like mold. Use straight bleach on it to kill the mold.
I used Tilex on my husband's shower. He normally cleans his own bathroom but never cleans the shower door or walls. The Tilex worked great on the shower walls but not the frosted glass door.
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