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Thread: 1 CC should I be concerned?

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    Join Date
    Aug 2015
    Location
    Teutpolis, IL
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    44

    1 CC should I be concerned?

    Water is crystal clear. Was staying pretty well balanced but chlorine dropped during day in sun but we typically brought it back up each evening. Last night the CC level was 1 and ph jumped to 8.2. Already put muratic acid in and ph back to 7.5. CC before was always 0 or .5. Should I be concerned that it went up to 1?
    18x33x4 oval Above ground pool- 15300 gallons, sand filter, full sun no shade
    tft-100 test kit
    Central Illinois

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    Texas Splash's Avatar
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    Jun 2014
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    South-Central Texas, Marion/San Antonio
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    12,941

    Re: 1 CC should I be concerned?

    An elevated CC does not mean the worse, but it is a clue that your pool is struggling. For now, increase your FC through this evening based on your CYA. Use the Chlorine/CYA Chart (link below) to help you. Whatever your target FC should be, increase it by 2-3 ppm for tonight. Consider doing an overnight (OCLT) as well. You might squeak-by without requiring a SLAM tomorrow. Only time and the OCLT will tell.
    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
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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    Richard320's Avatar
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    Jan 2010
    Location
    San Dimas, CA (LA County)
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    18,768

    Re: 1 CC should I be concerned?

    Did you have a lot of swimmers yesterday? That'll drive up CC and lower FC faster than normal. A lot of splashers will also aerate and drive up pH.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Join Date
    Aug 2015
    Location
    Teutpolis, IL
    Posts
    44

    Re: 1 CC should I be concerned?

    We been swimming a little bit each day. Extra kid here or there but no huge groups. Lost 1 part chlorine overnight

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