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Thread: Post SLAM x2 weeks - still cloudy blue

  1. Back To Top    #1

    Join Date
    Apr 2016
    Hutto, TX

    Post SLAM x2 weeks - still cloudy blue

    Hi everyone. I did my first SLAM this year trying to open my above ground 24' x 54" pool w/ sand filter. My CYA ended up a bit too high but I've adjusted my chlorine level accordingly. Problem is that although the pool is now blue, it is cloudy and not clear. Levels are as follows:
    FC: 12
    CC: 0
    pH: 7.4
    TA: 150
    CH: 210
    CYA: 90

    Any suggestions to get clear? I'm pretty new at all of this.

  2. Back To Top    #2
    S1ngram's Avatar
    Join Date
    Jun 2014
    Chrisman, Illinois (East Central Illinois)

    Re: Post SLAM x2 weeks - still cloudy blue

    Your SLAM is not complete until:
    1) Your water is clear,
    2) You pass the overnight chlorine loss test by losing no more than 1 ppm overnight, and
    3) Your CC is .5 or less.

    Can you see the bottom of your pool or is the water so cloudy that it's opaque?
    27' round Seaspray Evolution, AG, 17,100 gallons, Pump: Hayward Power-Flo Matrix Dual Speed 1.5 hp, Filter: Hayward Pro Series High Rate Sand Filter, June 18, 2014, Kreepy Krauley Lil Shark, TF-100 test kit, Intex Krystal Clear Saltwater System

  3. Back To Top    #3
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Post SLAM x2 weeks - still cloudy blue

    It might be time to add a little DE to that filter. If you reread the SLAM article, you'll probably find you missed it the first time around. Essentially what you'll be doing is the microscopic equivalent of setting window screen atop chicken wire. Just be sure that when you do it, you stick around the house, because it can load up really fast. Just backwash it away and add some more.
    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!

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