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Thread: Cloudy water

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    Cloudy water

    I have a SWG and have not had any problems with the water staying perfectly clear until recently. Now, it has been cloudy for 5 days. We have shocked the pool and done the overnight free chlorine test each morning and it has been fine. Here are the current numbers:

    FC 8
    PH 7.8
    Salt 3000
    CYA 55
    TA 100

    We need some help as to what to do next. We have already added more CYA to get those levels up. Any advise?
    18,500K gal, IG vinyl, sand filter, Swim Pure Plus SWG with a T-Cell-15-SWP, 1.5HP Hayward pump, Built 2008

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    Mod Squad jblizzle's Avatar
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    Re: Cloudy water

    During your shock process were you maintaining a FC level of 17-22ppm? If not, you were not following the Shocking Your Pool PROCESS

    Please add your pool details and location as described HERE to your signature as it will help us help you.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: Cloudy water

    Yes we shocked the pool to 20
    18,500K gal, IG vinyl, sand filter, Swim Pure Plus SWG with a T-Cell-15-SWP, 1.5HP Hayward pump, Built 2008

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    Re: Cloudy water

    Nothing in your test results is abnormal. It would normally not turn suddenly cloudy on it's own. Can you think of some change that occurred?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Cloudy water

    No I can't think of anything that might be different. It hasn't been extremely hot yet either and we have had rain but the we did testing each day and nothing seemed off after the rain. I vacuum at least once a day and sometimes twice. We have not changed the sand recently. Could that be the problem?
    18,500K gal, IG vinyl, sand filter, Swim Pure Plus SWG with a T-Cell-15-SWP, 1.5HP Hayward pump, Built 2008

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    Re: Cloudy water

    You should never need to change the sand.....that's a pool store myth.

    A very inexpensive procedure you can try is to simply elevate your chlorine to twice it's maintenance level for a couple of days and run your pump 24/7. That might do it. It is fine to swim at those levels so you can use the pool normally.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Cloudy water

    We had been running it all week 24/7. We will increase the chlorine levels as well for a few days. Here are the latest numbers this morning.

    CYA 70
    FC 14
    PH 7.8
    CC .5
    TC 14.5
    TA 110
    18,500K gal, IG vinyl, sand filter, Swim Pure Plus SWG with a T-Cell-15-SWP, 1.5HP Hayward pump, Built 2008

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    Re: Cloudy water

    Did it turn suddenly cloudy? I still won't have a definitive answer but I am curious.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Cloudy water

    Yes. The water looked crystal clear and then we noticed it started looking somewhat cloudy about 5 days ago and at that time we started shocking the pool.
    18,500K gal, IG vinyl, sand filter, Swim Pure Plus SWG with a T-Cell-15-SWP, 1.5HP Hayward pump, Built 2008

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    Re: Cloudy water

    What chlorine source did you use to raise the FC to shock value?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Cloudy water

    I have been using 6% bleach
    18,500K gal, IG vinyl, sand filter, Swim Pure Plus SWG with a T-Cell-15-SWP, 1.5HP Hayward pump, Built 2008

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    Re: Cloudy water

    The ph is on the higher end of the range. try adding acid and bring ph down to 7.2. don't add anything else for hours. then test parameters.

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    Mod Squad jblizzle's Avatar
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    Re: Cloudy water

    PH test is not valid at shock FC levels. Do not adjust pH while in the shock process.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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