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Thread: New to all of this testing!

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    New to all of this testing!

    I am new to this fourm and all of this tessting, I found this forum when I recently began looking for a new pool. I am concerned with the level of total alkalinity found. The pool has been filled for about 3 weeks with water from the tap and about 4" of rainwater. The rain has brought the ph down to 7.4 from the 8.2 from the tap. My levels are as follows:

    FC 2.5
    CC 0
    TC 2.5
    PH 7.4
    TA 250
    CH 250

    Should I be concerned with the total alkalinity levels in an above ground pool with a vinyl liner?
    The Pool will have boric acid and salt added to the proper levels to improve feel, I may add a SWG later.
    Have I missed anything?

    TIA Eric
    27' x 54" Cameo by Backyard Leisure (Wilbar) 17,200 gallon
    Hayward S180T filter with a 1.5hp pump
    Zodiac Barracuda Ranger vacuum
    GLI fencing around top rail
    All piping hard piped (that is what I do far a living!)
    six 2'x20' solar panels

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    Mod Squad woodyp's Avatar
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    Re: New to all of this testing!

    If this is a totally fresh fill for the pool, you're gonna need some CYA in there to help prevent a massive chlorine loss due to sun/temp. See the chlorine/cya chart in pool school. The TA will drop over time as you add muriatic acid to keep lowerin PH. It is not an overwhelming concern. Please add a signatue line to your profile and tell us about your pool like mine below.
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    JasonLion's Avatar
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    Re: New to all of this testing!

    The main problem with high TA levels is indirect. High TA tends to raise the PH fairly rapidly, and the high PH is the real problem. Your high TA, combined with some of your other levels, also puts you at risk for calcium scaling. As long as you keep the PH at 7.6 or lower you should be fine. Over time that will drive the TA down. However, if the PH goes up rapidly enough to be annoying, you can work more aggressively to lower the TA level, which will slow the rate at which PH increases and reduce the chances of calcium scaling.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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  4. Back To Top    #4

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    Re: New to all of this testing!

    What is your fill water source? I would be curious to see what the TA of your fill water is, seeing as how your TA is so high.

  5. Back To Top    #5

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    Re: New to all of this testing!

    That is munincipal tap water!!! The water in my area comes from deep wells off of limestone beds, I am lucky to have a low ph level from the tap of 8.1 right now,in the summer the ph regularly exceeds 9.0 and the desovled solids will precipitate out of suspension. If I fill a clean clear glass and let it sit overnight thete will be a milky white residue on the bottom in the morning. The rain water that we have recieved in the last 3 weeks have pulled the ph down. The joke is if you want to pour a sidewalk just run the garden hose overnight.
    27' x 54" Cameo by Backyard Leisure (Wilbar) 17,200 gallon
    Hayward S180T filter with a 1.5hp pump
    Zodiac Barracuda Ranger vacuum
    GLI fencing around top rail
    All piping hard piped (that is what I do far a living!)
    six 2'x20' solar panels

  6. Back To Top    #6

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    Re: New to all of this testing!

    Quote Originally Posted by esdd
    ... The joke is if you want to pour a sidewalk just run the garden hose overnight.


    That's pretty funny. That would explain your testing values for sure.

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    Re: New to all of this testing!

    Eric,

    Welcome to the forum. What is your CYA test result?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  8. Back To Top    #8

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    Re: New to all of this testing!

    The cya should be near 0, I have a full pail of tricolor that I am going to use until either it is used up or the cya hits good numbers then switch to bleach.
    27' x 54" Cameo by Backyard Leisure (Wilbar) 17,200 gallon
    Hayward S180T filter with a 1.5hp pump
    Zodiac Barracuda Ranger vacuum
    GLI fencing around top rail
    All piping hard piped (that is what I do far a living!)
    six 2'x20' solar panels

  9. Back To Top    #9

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    Re: New to all of this testing!

    I have a full pail of tricolor that I am going to use until either it is used up or the cya hits good numbers then switch to bleach.
    That works.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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