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Thread: Frass(caterpillar poop) and FC level

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    jorivesud's Avatar
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    Jun 2015
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    Frass(caterpillar poop) and FC level

    I having lots of Frass (caterpillar poop pellets) dropping in my pool.
    This is obviously eating FC, since it's organic.

    Am I safe in just keeping my FC 2-3ppm higher then target recommendation, until this stops?
    Or should I do something more.
    I do clean it everyday, but hard to keep up. I'm hopping this will stop soon...

    My water is crystal clear and parameters at check.
    12x20 vinyl liner + fiberglass steps. (6800 Gallons)
    SWCG - Hayward Salt&Swim 3C
    Hayward XStream Cartridge Filter (200 SQ.FT)
    Hayward TriStar VSP
    Raypak heat pump, Taylor K-2006 test kit.

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    TFP Guide

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    Re: Frass(caterpillar poop) and FC level

    You can keep it slightly higher if it makes you feel better but if you are able to maintain the FC target for you CYA level with out it dipping below at times you have all the disinfecting power you need to deal with the poop. Sometimes the things you can see in the water has more psychological impact than actual infection potential. Trust you testing and you should be fine.
    12,300 Gallon, IG PebbleFina, 3 ft sheer, 2 Jandy nicheless LED lights, Jandy Pro 1.5HP VS pump (A.O. Smith Motor), PB4-60 Booster pump, Polaris 280, Jandy cv340 cartridge filter, Zodiac Z4 control panel W/iAquaLink, Stenner pumps for chlorine & MA connected to WiOn WiFi switches, TF-100. You can support TFP with AmazonSmile just click the link!

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    jorivesud's Avatar
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    Re: Frass(caterpillar poop) and FC level

    That was my thinking.
    The reason to have a bit higher FC is just to be 100% sure it won't go below minimum.
    12x20 vinyl liner + fiberglass steps. (6800 Gallons)
    SWCG - Hayward Salt&Swim 3C
    Hayward XStream Cartridge Filter (200 SQ.FT)
    Hayward TriStar VSP
    Raypak heat pump, Taylor K-2006 test kit.

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    In the Industry

    duraleigh's Avatar
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    Re: Frass(caterpillar poop) and FC level

    Frass - well, I wondered what I would learn new today.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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