By JC from Davenport, IA
Here are the recent answer to this question.
By Anonymous 03/31/2010
No, it's not at all harmful/corrosive to fiberglass.
By kathleen williams 03/30/2010
I also found that if you sprinkle a little Epsom salts to my bathwater to prevent soap scum. The soap seems to float on the top of the water rather than becoming a scummy ring, then goes down the drain. I found this out after using the salts to help sore muscles. It seems that ever so little of the salts in the water helps prevent the scum. Good luck.
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