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Thread: Cloudy Pool after SLAM

  1. Back To Top    #1

    Join Date
    May 2016
    Location
    Johnson City, TN
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    3

    Cloudy Pool after SLAM

    26,000 gal Vinyl In-ground, S-200 Sand Filter
    Opened Pool 8 Days ago and had bad algae bloom (see pic).
    Used SLAM.
    Started FC 0, PH 8.0, TA 40, CYA 40
    Brought PH 7.5 and FC to 15.
    Pool Responded as expected (see pics)
    At day 3 passed overnight loss test and CC < 0.2 but still a little cloudy.
    Raised TA up to 80, CYA to 50 and dropped FC to 4.0.
    Have maintained FC 4.0-6.0 and PH 7.4 for 5 days. Backwashing at least 2-3 times a day, vacuuming fallout every day or two.
    Pool remains cloudy, did I drop the FC too soon?
    Any Suggestions?
    Thanks

    Day1.JPG
    Day 1

    Day2.JPG
    Day 2

    Day4.JPG
    Day 4

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
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    May 2010
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    Re: Cloudy Pool after SLAM

    Welcome to TFP!!!

    If the water is still cloudy, then you have not passed the 3 criteria to stop maintaining the shock level FC.

    Sand filters are the slowest to clear up the cloudiness and your frequent backwashing could be part of the problem. Only backwash when the pressure rises 20-25% over the clean pressure.

    I would also suggest Deep Cleaning your Sand Filter and if you are not seeing daily improvement after that, you can try to Add DE to your Sand Filter.
    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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  3. Back To Top    #3

    Join Date
    May 2016
    Location
    Johnson City, TN
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    Re: Cloudy Pool after SLAM

    Thanks jblizzle,

    First time doing a SLAM and looks like a jumped the gun when things improved so quickly.
    I'll use your suggestions tomorrow.

    dpjkw

  4. Back To Top    #4

    Join Date
    May 2016
    Location
    Johnson City, TN
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    Re: Cloudy Pool after SLAM

    Would you recommend bringing back up to shock level till clear?

  5. Back To Top    #5
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
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    Tucson, AZ
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    Re: Cloudy Pool after SLAM

    Well ... all the way up at shock level may not be needed at this point, but I might elevate to 9-10ppm or so.
    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
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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