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Thread: Chemistry help

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    Join Date
    May 2015
    Location
    Weatherford, TX
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    Chemistry help

    New plaster Jan 2015 similar to Pebble Tech (new to pools and need a little hand holding).
    TF-100 test results
    CYA 0
    CL less than .5
    PH 8.2
    CDT not pink zero chLorien
    CC 0
    CH 400 blue but red dots still present
    TA 90-100 turned red then green

    Obviously chemicals and chlorine are not right. We have brown/yellow spots in pool, some will brush away.
    Was going to slam pool but my numbers are horrible. Where do I start???

    Fyi we have had several inches of rain in the last month and we are still learning how to properly operate a pool.
    Approx. 27k gallon pool square diving pool, vs pump, 100sqft filter, offline chlorination tube suction cleaner. New plaster/and remodel Jan 2015 micro fusion (close to pebletec)

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    Mod Squad jblizzle's Avatar
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    Re: Chemistry help

    Welcome to TFP!!!

    Are you swirling the water samples the entire time you are adding drops? Does not sound like the colors are changing like they should. You should add drops until the last drop causes no further color change and then that does not count.

    Get the pH down!!! That is important with new plaster, especially when your CH is a little high.

    Have you added CYA at all?
    Target CYA up to 30ppm and then start to SLAM .... after you get the pH back in the lower 7s.

    Have you been maintaining the pool since January or was some company?
    Jason, TFP Moderator
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    Mod Squad pooldv's Avatar
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    Re: Chemistry help

    Here are some videos showing the tests that might help
    https://www.youtube.com/user/tf100te...e=results_main

    Rule #1 never let your FC go below the min level for your cya based on this Chlorine CYA Chart

    Here are some basic introductory articles from Pool School
    TFPC for Beginners
    ABC's of Pool Water Chemistry
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    May 2015
    Location
    Carbondale, PA
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    Re: Chemistry help

    I am also new to this pool thing, but have been playing with a hot tub and it's numbers since October. I can tell you though that investing in the speed stirrer really helped me with my tests. I was not "swirling" enough and my numbers were wonky!
    27 foot round 4ft deep AG vinyl. Hayward Sand Filter.
    Dr. Wellness Lifestyle x-12 spa.

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    Defgufman's Avatar
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    Re: Chemistry help

    You need some acid big time to get that PH down. I concur with a date with SLAM is in your future. Until then I'd add 1 gallon of bleach to stop any growth right now. Again a SLAM is in order asap.
    Inground 13,200 gal Vinyl, Pentair 3/4 hp pump, Pentair Sand Dollar filter, Polaris 280

    Pool School, Pool Math, CYA to FC ratio chart, Testing Kits

  6. Back To Top    #6

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    May 2015
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    Weatherford, TX
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    Re: Chemistry help

    I added 1 gallon of bleach, it brought my chlorine up to 2-4. My plan is to lower the PH and then slam. How does this sound?
    Approx. 27k gallon pool square diving pool, vs pump, 100sqft filter, offline chlorination tube suction cleaner. New plaster/and remodel Jan 2015 micro fusion (close to pebletec)

  7. Back To Top    #7
    Mod Squad pooldv's Avatar
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    Re: Chemistry help

    Yep, sounds good. Here is the process.
    SLAMing Your Pool
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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