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Thread: Cloudy water after adding Bleach

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    Cloudy water after adding Bleach

    I went away on vacation a for a few days. When i got back the pool looked perfectly clear, So figured i run the tests to to be safe. MY FC was 0.0 and CC was 1.5. So immediately panicked and dumped 1.5 gallon of bleach (12.5%) in the pool . The pool became extremely cloud within minutes of adding the bleach.
    What caused this? My thought was algae bloom had started so i started doing a SLAM on my 2nd day now its clearing up but still a bit cloudy.
    Located in Lebanon,Pennsylvania.. 25,000 Gallon IG Plaster Pool Installed Fall of 2011...
    Stenner 3GPD pump
    Jandy DEV60 60SqFt DE Filter (Using Puri fiber.)..,1.5Hp Jandy Pump PMPH1.5
    Aqucal SQ 166R Heater...Polaris 9400 Robot/Cleaner
    TF-100 Test Kit

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    Patrick_B's Avatar
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    Re: Cloudy water after adding Bleach

    That's odd, but I would hold the SLAM value until you pass all SLAM criteria. One of those being clear. Let us know how this comes out.
    TFP Moderator
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  3. Back To Top    #3

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    Re: Cloudy water after adding Bleach

    Yeah I thought it was odd too.... When I saw cloudy I could barely see the drains in the deep end after 10-15 minutes of adding bleach.


    Located in Lebanon,Pennsylvania.. 25,000 Gallon IG Plaster Pool Installed Fall of 2011...
    Stenner 3GPD pump
    Jandy DEV60 60SqFt DE Filter (Using Puri fiber.)..,1.5Hp Jandy Pump PMPH1.5
    Aqucal SQ 166R Heater...Polaris 9400 Robot/Cleaner
    TF-100 Test Kit

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    Texas Splash's Avatar
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    Re: Cloudy water after adding Bleach

    Here's a thread from it happening to someone else. I don't know your other test levels, but perhaps it might explain what just happened to you: Pool got cloudy after adding bleach
    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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    Pool Tool's Avatar
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    Re: Cloudy water after adding Bleach

    Ph and CH in line? I'll be the first here - full set of test results please?

    I wouldn't think adding 8-9 ppm FC would cause any scaling or precipitation.

    EDIT - Texas found the post i was thinking of. Thanks.
    16' x 32' (21100 gal), vinyl, 1.5 hp Hayward SuperPump,
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  6. Back To Top    #6

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    Cloudy water after adding Bleach

    12.5FC
    1.5CC
    90ALK
    300CH
    8.2+ PH dark red n off the chart!

    Pool is clear now though
    Located in Lebanon,Pennsylvania.. 25,000 Gallon IG Plaster Pool Installed Fall of 2011...
    Stenner 3GPD pump
    Jandy DEV60 60SqFt DE Filter (Using Puri fiber.)..,1.5Hp Jandy Pump PMPH1.5
    Aqucal SQ 166R Heater...Polaris 9400 Robot/Cleaner
    TF-100 Test Kit

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    Texas Splash's Avatar
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    Re: Cloudy water after adding Bleach

    Good it cleared-up for you. But there are a couple items to watch based on your latest readings:
    - PH should be between 7.2 - 7.8. If you need to SLAM (a possibility), it should be closer to 7.2
    - CC of 1.5 is over our recommended <=.5 This indicates you have some organic material in your water and may using-up FC.

    So even though your water is clear, there may be something trying to brew. You might want to consider lowering your PH to 7.2, and this evening do an OCLT as instructed HERE. If you fail the OLCT by losing more than 1 ppm FC overnight, it's time to SLAM.
    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.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  8. Back To Top    #8

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    Re: Cloudy water after adding Bleach

    Yup Texas splash I was thinking the same thing.


    Located in Lebanon,Pennsylvania.. 25,000 Gallon IG Plaster Pool Installed Fall of 2011...
    Stenner 3GPD pump
    Jandy DEV60 60SqFt DE Filter (Using Puri fiber.)..,1.5Hp Jandy Pump PMPH1.5
    Aqucal SQ 166R Heater...Polaris 9400 Robot/Cleaner
    TF-100 Test Kit

  9. Back To Top    #9

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    Re: Cloudy water after adding Bleach

    FC loss was 1.5 and CC was .5 I suspect I will pass SLAM tonight. Oh yeah got my ph down to 7.2 ish


    Located in Lebanon,Pennsylvania.. 25,000 Gallon IG Plaster Pool Installed Fall of 2011...
    Stenner 3GPD pump
    Jandy DEV60 60SqFt DE Filter (Using Puri fiber.)..,1.5Hp Jandy Pump PMPH1.5
    Aqucal SQ 166R Heater...Polaris 9400 Robot/Cleaner
    TF-100 Test Kit

  10. Back To Top    #10

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    Shallotte, NC
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    Re: Cloudy water after adding Bleach

    As others have stated, you need to get your chemistry fixed ASAP. I think your cloudiness was Calcium Carbonate. If it was, you may see the cloudiness again, as you correct your pH.

  11. Back To Top    #11

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    Re: Cloudy water after adding Bleach

    All my numbers are in line now with the exception of a little too much FC loss last night. Not sure what you are referring too?


    Located in Lebanon,Pennsylvania.. 25,000 Gallon IG Plaster Pool Installed Fall of 2011...
    Stenner 3GPD pump
    Jandy DEV60 60SqFt DE Filter (Using Puri fiber.)..,1.5Hp Jandy Pump PMPH1.5
    Aqucal SQ 166R Heater...Polaris 9400 Robot/Cleaner
    TF-100 Test Kit

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