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black algae?

September 30th, 2005 · 1 Comment

I have an older fiberglass pool about 12k gal. which has developed
black patches on the wall. I have shocked the crap out of it and
still there. It will not scub off either. Any suggestions?

Tags: pumps

1 response so far ↓

  • 1 Neva Marjory // Oct 1, 2005 at 1:21 pm

    I wish I had….!
    I’ve had that problem before as well, with a liner pool, just along
    the bottom of the walls and I never got rid of the damn stuff until I
    changed the liner…. :( Steve.

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