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Thread: Safe to swim with high FC

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    Join Date
    Mar 2015
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    Charlotte, NC
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    Safe to swim with high FC

    That is very sad.

    We are at the very end of our SLAM. Our water has been perfect all year, but we let it slip last week when we had 5 days of rain. It got a slight green tint so we started the SLAM. We can see the bottom and it looks pretty good, just a little cloudy. The kids are begging to swim today, but the FC is 15 (our CYA is 30-40). Is it safe to let them swim with the FC that high or should I make them wait until the FC drops?


    This was split off the topic here:. This is why we say

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    Re: This is why we say "Its not safe to swim if you can't see the bottom"

    An FC level of 15 will not hurt them but have you done the OCLT to make sure the problem is solved completely before you conclude the SLAM process.
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    Re: This is why we say "Its not safe to swim if you can't see the bottom"

    Yes, last night it only dropped .5. Do you think that is sufficient to let them swim? I was going to maintain an FC of 15 for another day or so just to be safe.

  4. Back To Top    #4
    Mod Squad tim5055's Avatar
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    Re: Safe to swim with high FC

    If it is safe to swim depends on your CYA level. If the FC is below shock level for your CYA, then yes, it's safe to swim.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Mod Squad pooldv's Avatar
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    Re: Safe to swim with high FC

    Right, it is safe to swim when your chlorine level is above the minimum and below the shock level for your CYA on the Chlorine CYA Chart
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