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Thread: Such a thing as high chlorine

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    Join Date
    Aug 2013
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    Mcallen, TX
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    Such a thing as high chlorine

    Fc 12
    Cc 0
    Ta 80
    Ph 7.4
    Cya 60-70
    Pump run time 8-5pm with generator at 70%

    Does it matter that my FC is that high, or should I decrease % of generator or pump run time?
    17k gallon pool, pentair whisperflo pump 1hp, Pentair FNS Plus 36, SWG Hayward Turbo Cell 15 40,000g, blue quartz with pebble finish landings/bench, ultra pure water cleaner.

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    Isaac-1's Avatar
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    Re: Such a thing as high chlorine

    Your FC is high, but not dangerously so, with a CYA level of 70 and an SWG you want to target an FC level of 5 ppm
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    Richard320's Avatar
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    Re: Such a thing as high chlorine

    That's still below shock level, so it's safe to swim in, but it doesn't have to be that high. Turn the SWG down to 50% and see what happens over the next week. If it's still above 5 or 6, turn it down some more and save your SWG. Wait -- are you planning on a big bash over the holiday weekend? Better leave it alone until after.
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    Re: Such a thing as high chlorine

    I'm going to lower percentage, this is the first time my cya is accurate since I had the pool built and the temperature has been unusually cool so that might be a good reason for not needing the salt cell to run at a higher %. Last year I had it running at 90%, but it was really hot and I'm sure I'm cya was a lot lower.
    17k gallon pool, pentair whisperflo pump 1hp, Pentair FNS Plus 36, SWG Hayward Turbo Cell 15 40,000g, blue quartz with pebble finish landings/bench, ultra pure water cleaner.

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    Smykowski's Avatar
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    Re: Such a thing as high chlorine

    Quote Originally Posted by jrr View Post
    I'm going to lower percentage, this is the first time my cya is accurate since I had the pool built and the temperature has been unusually cool so that might be a good reason for not needing the salt cell to run at a higher %. Last year I had it running at 90%, but it was really hot and I'm sure I'm cya was a lot lower.
    Good work. The fact that you are able to articulate the above means you understand what's going on in your pool.

    This is also why, even with an SWG, we recommend daily testing. Any change in air/water temp, bather load, etc., will change the FC consumption in the pool.
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