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Thread: Having trouble knowing what to do next

  1. Back To Top    #1

    Join Date
    Jul 2015
    Location
    South Jordan, UT
    Posts
    5

    Having trouble knowing what to do next

    Here are my numbers
    FC: 0.5
    CC: 0.5
    PH: 7.2
    TA: 150
    CH: 225
    CYA: 0
    Temp: 68

    I have been trying to lower my TA from 230 since Tuesday this week. I've been using dry acid to do this with a 12 oz. dose approximately 2-3 times a day at no less than 4 hour intervals. The pool store suggested I do this before anything else. However reading more deeply on this forum it looks like I need to slam, but need to bring CYA up first to do this. I need to mention that the water has been cloudy. I have cleaned the pool including vacuuming last night. Started to notice late yesterday that the water was starting to have a slight green tinge to it just befor I vacuumed. I have been bringing PH by aerating. It dropped to 6.8 last night.

    So, instead us putting dry acid in again to continue the TA reduction, I have put in the powdered Cyanuric acid to bring up CYA in prep for slamming. Based on the Powderd Cyanuric acid bag instructions in order to raise the CYA from 0 to 30 I needed to add ~24 oz. of powder. I put half in a bucket of warm water and dumped it in the skimmer without the basket. I have placed the other half in a skimmer sock tied it off and have it suspended in the skimmer so it won't clog. The pump has been running 24/7 since Momday 6/19.

    Not sure what to do next? Should I start the slamming process with chlorine bleach, if so how much based on an initial CYA of 0 or should I wait? Dazed and confused. Spending a lot of time on this pool getting it up and running this year.
    18' x 48" Round AG- 6,423 Gal SunRunner AL50 Sand filter/Pump combination
    13" 45lb. SF, 30gpm pump
    Installed 7/13/15 filled by 7/15/15 from city water, hard water
    TF 100 test kit

  2. Back To Top    #2
    Texas Splash's Avatar
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    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
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    Re: Having trouble knowing what to do next

    Hello! Yes, a SLAM is in order. Check your CYA to make sure it's making its way to 30. You need that protection for your chlorine. Increase FC to "12" with regular bleach and maintain it as much as possible day/night until you pass all 3 SLAM criteria. Refer to the SLAM page for other details. After the SLAM, you can work on TA following the TFP Pool School - Lower Total Alkalinity. When you do though, I would use muriatic acid.

    Good luck on your SLAM and let us know if you have any other questions.

    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
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  3. Back To Top    #3

    Join Date
    Jul 2015
    Location
    South Jordan, UT
    Posts
    5

    Re: Having trouble knowing what to do next

    Thank you. CYA is still 0 I just put the Cyanuric acid in about 3 hours ago. Wait a while I guess?


    18' x 48" Round AG- 6,423 Gal SunRunner AL50 Sand filter/Pump combination
    13" 45lb. SF, 30gpm pump
    Installed 7/13/15 filled by 7/15/15 from city water, hard water
    TF 100 test kit

  4. Back To Top    #4
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,975

    Re: Having trouble knowing what to do next

    Since you added a programmed amount to increase CYA to 30, just assume CYA will get there and go ahead and increase the FC to 12. You can check the CYA again in a couple days to see how well it rose.
    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
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  5. Back To Top    #5
    Divin Dave's Avatar
    Join Date
    Oct 2013
    Location
    Longview, Texas
    Posts
    4,926

    Re: Having trouble knowing what to do next

    Hi BansaiKnitter,
    yes, slam is in order. When you finish the slam, you need first and foremost to maintain your FC and your pH.
    TA is the last thing you really want to worry about and you can take your time in getting it lower.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

  6. Back To Top    #6

    Join Date
    Jul 2015
    Location
    South Jordan, UT
    Posts
    5

    Re: Having trouble knowing what to do next

    Thanks I'll let you know.


    18' x 48" Round AG- 6,423 Gal SunRunner AL50 Sand filter/Pump combination
    13" 45lb. SF, 30gpm pump
    Installed 7/13/15 filled by 7/15/15 from city water, hard water
    TF 100 test kit

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