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Thread: First shock of the season, ? on my numbers

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    Join Date
    Jul 2013
    Seattle, WA

    First shock of the season, ? on my numbers

    So, the kids and I left for a week and hubby didn't add bleach as needed... We had algae and I shocked it 5 days ago. The water looked clear until the kids got in today (first time since shocking) and then it changed to cloudy - stirred up stuff on the bottom no doubt. I need to buy a scrub brush and really scrub, since there was still some residual "green" on one corner of the pool that the vacuum wouldn't suck up.

    Anyways, today the numbers today are:
    CYA - 40
    FC - 7.6 (use the Taylor kit and it took 38 drops to turn from pink to clear. 1 drop=.2ppm.)
    CC - .8
    PH - 7.4
    Alk - 110
    Ca hardness (did I need this one?) - 70

    These numbers look ok except for the chlorine, right? Chlorine is still too high. And today for the first time we skimmed out 2 large water bugs - I guess the back-skimmer variety? I saw them both fly into the pool and then start swimming. Is that just a coincidence or is the green that is stuck to the sides attracting them. I figured with chlorine levels like that nothing could be growing. Am I way off.
    Pool newbie...
    1800 gal, AG Intex Easy Set 12x36, 530G Filter Pump 110-120 volt GFCI, 59900e-Type A Intex filter cartridge, BBB, climate: Seattle

  2. Back To Top    #2

    Join Date
    Jun 2012
    Howell, NJ

    Re: First shock of the season, ? on my numbers

    So you still see algae, correct? That means you need to follow the SLAM until you meet all 3 criteria. Full process is linked to in my signature. There's no need to test chlorine using the 25 mL sample, .5 ppm resolution is fine.
    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.

  3. Back To Top    #3
    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    East Texas

    Re: First shock of the season, ? on my numbers

    Your shock value of FC for your CYA level is 16. No, 7 isn't too high. See the chlorine/cya chart-------in you know where! (pool school)
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: First shock of the season, ? on my numbers

    Time to SLAM. You have failed 2 of the 3 criteria (visible algae, high CC). [slam:1g5bvx06][/slam:1g5bvx06]
    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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