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Thread: High FC levels safe to swim?

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    Join Date
    Jun 2014
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    High FC levels safe to swim?

    I'm in the middle of a shock, is it safe to swim? My CYA is around 60 so my shock level is 34 (mustard algae). Is 34 too high to swim?
    40,000 gallons
    DE 60 sq. ft.
    In-ground
    Plaster

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    Texas Splash's Avatar
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    Re: High FC levels safe to swim?

    As long as there are no other odd or contributing factors (i.e. green water), it is safe as long as your FC is in between your minimum and SLAM FC level. Anything high or lower then it is not recommended.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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    Mod Squad pooldv's Avatar
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    Re: High FC levels safe to swim?

    I would not recommend swimming above FC of 24 ppm. You want to make some drinks and hang out in the pool and actually swim? or get in and brush and scoop out stuff?

    We generally say it is safe to swim when:
    PH is 7.2 - 7.8
    Chlorine is above minimum level for CYA level
    Chlorine is below shock level for CYA level
    Water is clear

    Pool School - Chlorine / CYA Chart
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    Join Date
    Jun 2014
    Location
    Dallas TX
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    Re: High FC levels safe to swim?

    Thanks.

    Rainy weather kept us out of the pool anyway... now FC is down and shock is over so should be good. thanks for replies!
    40,000 gallons
    DE 60 sq. ft.
    In-ground
    Plaster

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