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Thread: Stains from decomposing worms

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    Join Date
    Apr 2012
    Location
    Newton, NC
    Posts
    157

    Stains from decomposing worms

    We were away for a few days. When we got home, we found that a bunch of small (about 1 inch long) worms had decided to swim in our pool. We got a bunch of them out. But, it looks like a few died on the bottom and are now decomposing. So, we have these little raised brownish yellow circles on the bottom of our fiberglass pool.

    I can't brush them loose. Somewhere I had read that scrubbing with a chlorine tablet would help....I tried, but no change.

    Our water is nice and clear. We have a SWCG. CYA and calcium hardness are fine. pH never varies beyond 7.4 - 7.6.

    There are about 5 of these stains spread around the bottom of the pool.

    Any suggestions on what else to try?
    Vince L

    16' x 37' fiberglass pool, 8' fiberglass spa, Hayward Swimclear C3030 filter, Hayward EcoStar VS pump, Goldline Pro Logic PL-PS-8, Goldline SWCG, Goldline Sense & Dispense pH control, Fiberstars LED's in pool & spa, AquaCal SQ175R heat pump, SR Smith Typhoon slide, Polaris 9300xi robotic cleaner, TF-100 Test Kit

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,082

    Re: Stains from decomposing worms

    Increase your FC to about twice it's normal level for a few days and brush the stains whenever you get a chance. I'm pretty sure they will disappear.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Join Date
    Apr 2012
    Location
    Newton, NC
    Posts
    157

    Re: Stains from decomposing worms

    Thanks for the suggestion, Dave.

    Just set the chlorinator to superchlorinate. Running in this mode for 24 hours definitely gets the FC level much higher.
    Vince L

    16' x 37' fiberglass pool, 8' fiberglass spa, Hayward Swimclear C3030 filter, Hayward EcoStar VS pump, Goldline Pro Logic PL-PS-8, Goldline SWCG, Goldline Sense & Dispense pH control, Fiberstars LED's in pool & spa, AquaCal SQ175R heat pump, SR Smith Typhoon slide, Polaris 9300xi robotic cleaner, TF-100 Test Kit

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