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Thread: GemDad in Sunny Columbia, SC pool reclaim

  1. Back To Top    #1

    Join Date
    Jun 2014
    Irmo, South Carolina

    GemDad in Sunny Columbia, SC pool reclaim

    Hi, y'all:
    GemDad here, New to TFP and just started using TF-100 Test Kit.

    Just got back to a green pond in the backyard ; Had not opened this year yet. I need help with priorities !!!

    FC : Below 0.5
    Ph : 8+
    TA : 80
    CH : 125
    CYA : <20

    Net is off, leaves scooped and several days backwash completed and filter running 24/7. Water level brought up to mid-skimmer level;
    What's next? Should I try to rebuild the FC first, or attack the algae?
    18K Vinyl kidney in-ground circa 2010, Hayward S200 Sand Filter (newsand2015), Smith B128 single-speed Centurion pump(2015), Hayward Vari-flow Valve, Chlorine, city water; 6yrs pool owner, Newbie to TFP; Returning rental to find Green Monster, I'm buying TFP-100 XL test kit;

  2. Back To Top    #2
    Mod Squad Texas Splash's Avatar
    Join Date
    Jun 2014
    South-Central Texas, Marion/San Antonio

    Re: GemDad in Sunny Columbia, SC pool reclaim

    Hello and welcome to TFP! You'll want to SLAM (link below) to clear that algae. Instructions are on that page, but here are a couple highlights:
    - Increase CYA to at least 30 so you have adequate FC protection
    - Lower pH to 7.2
    - Once pH is confirmed/adjusted, increase FC to "12" and maintain until you pass all 3 SLAM criteria.

    Let us know if you have any questions about the SLAM page or process. Good luck!
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  3. Back To Top    #3

    TFP Guide

    Join Date
    Jul 2015
    Central Valley CA

    Re: GemDad in Sunny Columbia, SC pool reclaim


    You are going to need to SLAM to get the algae under control. To do that you should first get the pH down to 7.2. Once the pH is under control you can start the SLAM right away. I would bring the CYA up to 30 if you don't have any on had I would not let that stop you from getting the SLAM started.
    12,300 Gallon, IG PebbleFina, built Oct 2015, 3 ft sheer, 2 Jandy nicheless LED lights, Jandy Pro 1.5HP VS pump (A.O. Smith Motor), PB4-60 Booster pump, Polaris 280, Jandy cv340 cartridge filter, Zodiac z4 control panel W/iAquaLink, 10GPDStenner for chlorine, 3GPD Stenner for MA, TF-100.

  4. Back To Top    #4
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Columbia, SC

    Re: GemDad in Sunny Columbia, SC pool reclaim

    As Pat said, balance CYA asnd pH and follow the directions on SLAMing your pool in the How To section of Pool School completely to the end.

    • CC is 0.5 or lower;
    • You pass an OCLT (ie overnight FC loss test shows a loss of 1.0 ppm or less);
    • The water is clear.

    When all three are true, you are done SLAMing and can allow the FC to drift down to normal levels.

    It may help if you read te following articles in Pool School:

    ABCs of Water Chemistry
    Recommended Pool Chemicals
    How to Chlorinate Your Pool

    So, welcome to TFP!!
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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