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Thread: Not 100% sure what to do first

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    Not 100% sure what to do first

    Hi everyone,

    First, this is a great resource. Thanks to all that put the time into it.

    We just had a new inground (vinyl) pool installed and it's been running for about 10 days. I was using test strips but found they were too variable. Then I found this site, read some Pool School and learned getting a proper kit was the way to go so I just received the K-2006 (in Canada, couldn't find TF-100). I did my first test last night.

    FC = 4ppm
    pH = 8
    TA = 130 ppm
    CYA = 0
    CH = 128
    Borate = 0
    Salt = 2900 ppm
    Approx volume = 12,000 gallons
    Water Temp = 84

    I know I should add more salt which I will today. The TA and pH are high. I assumed though that I should get the CYA up first which should lower the pH and the TA some, retest CYA in a week and see if I still need to work on the pH and TA. Does that sound like the right thing to do?

    Thanks for any info/advice!


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    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Not 100% sure what to do first

    I would bring the pH down to the mid seven's and then add the CYA. You can add the salt whenever you feel like it. Everything else doesn't look too bad at all. Don't worry about the TA, it'll come down as you adjust the pH.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Not 100% sure what to do first

    1. Lower the pH down to around 7.4 with muriatic........TA will come down with it.

    2. Put CYA in your pool....enough to get to 60 ppm.

    I think that's the sequence I would use. You may not need to readjust anyhting and I don't like to see the pH above 7.8 for any length of time.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  4. Back To Top    #4

    Re: Not 100% sure what to do first

    I appreciate the info. Off to get some acid and stabilizer now!

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