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Thread: Safe Chlorine Level Before Entering Pool

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    Safe Chlorine Level Before Entering Pool

    Will someone please tell me why the recommended chlorine level should be at a minimum of 2 to 4 before entering pool. I have seen this on labels and read about it from pool managers. Is it technically correct or just opinions. THANKS

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    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    DFW, TX

    Re: Safe Chlorine Level Before Entering Pool

    Because they either are not aware of or refuse to acknowledge the chemical buffering and bonding relationship between cyanuric acid and chlorine. It is entirely incorrect on all counts.

    Chlorine levels must be maintained based on CYA levels and the FC/CYA Chart. There are links at the bottom that explain the science behind it.
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    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Safe Chlorine Level Before Entering Pool

    It is technically correct if the water is straight out of the tap. Then it's high enough to kill viruses and bacteria. Once you start buffering the chlorine with CYA, it no longer holds.

    If you have a science background, this thread explains it. The part you want is right at the beginning. Lucky you. Pool Water Chemistry
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