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Thread: HI FC

  1. Back To Top    #1

    Join Date
    May 2010
    Location
    Central Connecticut
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    155

    HI FC

    Just tested my water. Have been fighting to get rid off cc's. Shocked it last night. Readings today:

    FC: 12.5
    CC: 0
    ph: 7.2
    CYA: 30
    Temp: 83

    is the 12.5 too high .. finaly at 0 CC. should I turn off my in-line tablet chlorinator for a couple of days till it comes down .. or just leave it all the way it is. ??? Was fC: 3 and CC: .5 before shocking last night.

    Also added Borax tonight to bring up the PH.

    thx
    18x36 IG 26,000 gal, Vinyl Liner, 24" Sand filter Hayward S224T, Jandy AE3000 heatpump and 1.5 HP SuperPump. Circupool RJ45 SWG

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    Join Date
    Feb 2010
    Location
    Houston, TX
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    271

    Re: HI FC

    If you haven't, you may want to do an overnight FC loss test. If the CL holds overnight, then go ahead and let it come back down. Is your water clear?
    John

    24' round Vogue AGP 12,000 gal. Flotec AT251001-01 1HP pump, Hayward S310T2 sand filter, Aquarite SWG T-15
    TF-100 (found at TF Test Kits) with Speedstir and Samplesizer

  3. Back To Top    #3

    Join Date
    May 2010
    Location
    Central Connecticut
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    Re: HI FC

    Yes the water is clear.

    Seperate issue .... I keep a solar cover on the pool. Will that have any effect on chemicals?
    18x36 IG 26,000 gal, Vinyl Liner, 24" Sand filter Hayward S224T, Jandy AE3000 heatpump and 1.5 HP SuperPump. Circupool RJ45 SWG

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    Re: HI FC

    No negative effects....one good day of full sun and half of that chorine will be gone
    25,000 gal IG Utopia pool/Raypack gas heater/BBB

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    Join Date
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    Location
    Central Connecticut
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    Re: HI FC

    just did another fc test. now fc:11.5 cc: .5 ph 7.6

    small drop in fc. just can't keep cc zero
    18x36 IG 26,000 gal, Vinyl Liner, 24" Sand filter Hayward S224T, Jandy AE3000 heatpump and 1.5 HP SuperPump. Circupool RJ45 SWG

  6. Back To Top    #6
    JasonLion's Avatar
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    May 2007
    Location
    Silver Spring, MD
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    37,887

    Re: HI FC

    Having CC alternating between 0 and 0.5 is fine. Some pools always have a CC level of 0.5, which really isn't a problem. As long as CC doesn't go up to 1.0, don't worry about it.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  7. Back To Top    #7

    Join Date
    May 2010
    Location
    Central Connecticut
    Posts
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    Re: HI FC

    Thanks. I guess I can stop chasing the .5 !

    On another post up the chain here ... someone if the FC held overnight. It went from 12.5 to 11.5 ? is that 1 considered a loss overnight ... or is ut insignificant?
    18x36 IG 26,000 gal, Vinyl Liner, 24" Sand filter Hayward S224T, Jandy AE3000 heatpump and 1.5 HP SuperPump. Circupool RJ45 SWG

  8. Back To Top    #8
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887

    Re: HI FC

    A loss of 1.0 or less overnight is considered fine.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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