Wednesday, 21 July 2021

Cause of Dark Discoloration on edges of fiberglass pool step?

This season we have noticed some darker discoloration on the edges of the steps in our fiberglass pool.
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The attached picture makes it look a little darker than they appear, but they are there, nonetheless. I assume it is the edges getting darker and not the rest of the surface getting whiter, but it is tough to tell as it has been gradual. Brushing or trying to see if anything comes off with my fingernail...

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