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Thread: cant get water clear

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    cant get water clear

    Been struggling with getting the salt water to clear. Can see the bottom drains thru the haze, but not sure what is preventing the crystal clear water of earlier this season. we have had roughly 4 inches of rain over the past couple weeks so we've had to dump water several times. Have also been running low PH.. right around 7.2 consistently. Based on what I read about cloudy water I thought we may have an issue that chlorine would fix so I dumped about 1.5 gallons of bleach in last night and let the filter run overnight. Still not clear this afternoon, but FC is quite high.

    Full chem as of 2pm today:
    PH 7.3
    FC 13.5
    CC 0
    TA 90
    CYA 60
    Borate 15 (last time I checked which was 2 days ago)

    Got something in the water or out of whack, but not sure what to do. Appreciate your feedback.
    Central PA, 22500 gall IG, vinyl, Pentair Intelli-Flow variable speed pump, sand filter, Pentair Intelli-Clor SWG

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: cant get water clear

    Well, it sounds like you need the SLAM process.

    And with your CYA level, high as it is, your FC level is not high enough. It should be somewhere above 18. For days. Also, if it's not filtering well, adding a little DE to the sand filter might help.

    Have you studied the article in Pool School about SLAM?
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  3. Back To Top    #3

    Re: cant get water clear

    I was thinking I might need to go there and shock it good, but the low PH had me a bit baffled too. Pool is only a year old so the filter in in real good shape.
    Is it safe to swim while the SLAM process is being carried out, or should we wait till the FC is down to a certain level??
    Central PA, 22500 gall IG, vinyl, Pentair Intelli-Flow variable speed pump, sand filter, Pentair Intelli-Clor SWG

  4. Back To Top    #4

    Re: cant get water clear

    Also... should the cover remain off during this entire process?? We usually put it on every night to maintain the water temp. But I might think this could also not allow the FC to disapate.
    Central PA, 22500 gall IG, vinyl, Pentair Intelli-Flow variable speed pump, sand filter, Pentair Intelli-Clor SWG

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    pwrstrk's Avatar
    Join Date
    Aug 2012
    Elverson Pa.

    Re: cant get water clear

    I would leave cover off during the SLAM due to the high chlorine level.

    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

  6. Back To Top    #6

    Join Date
    Jun 2012
    Howell, NJ

    Re: cant get water clear

    You can swim up to shock level for your CYA. It is best to leave the cover off to allow the sun to burn off the CC and let the pool "breathe."
    7 year old ~13,500 gal 24' AGP with 1.5 hp Proline pump, 150 sqft Pleatco cartridge, filled with well water with pH of about 4.5.
    Wanda the Whale pool vacuum, home made heater, Taylor K-2006
    Cloudy Pool? 1) Order test kit. 2) Follow SLAM
    New to TFPC? Read Pool School a few times, then post questions. PoolMath will help with chemical additions.

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