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Thread: Pool Water Change, Question about best numbers?

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    les_garten's Avatar
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    May 2011
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    Pool Water Change, Question about best numbers?

    I just did about a 65% water change(Trichlor) to lower CYA, that was fun...

    My pool is Pebbletec Inground

    After some adjusting I have:

    CL-4
    pH- 7.4
    TA - 110
    CH - 250
    CYA - 30-40
    Borates - just started adjusting back up from 15

    I don't have to add water very often, rain usually takes care of that for me in S. FL.

    If I adjust the CH, it will pretty much stay where I put it.

    What would be the best number? I shot for 250 and that's where I have it, but wondering if there would be a more "ideal" number.

    I'll re-check the TA after the Borates are done, what would be perfect for TA?

    How would these numbers best be set if I were getting ready for SWG?
    14x30 PebbleTec(Caribbean Blue) 12,000 Gals BORAX
    Pentair IntelliFlo <<>> Pentair FNS Plus DE
    Pentair 5G Intellibrite w/Intellibrite Controller
    ROME Solarium 125 Heat Pump
    Kreepy Krauly Classic <<>> Pentair 320 Feeder

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    dmanb2b's Avatar
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    Re: Pool Water Change, Question about best numbers?

    Quote Originally Posted by les_garten
    How would these numbers best be set if I were getting ready for SWG?
    pool-school/water_balance_saltwater_generator
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

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    Mod Squad jblizzle's Avatar
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    Re: Pool Water Change, Question about best numbers?

    Don't add more borates until your TA is in the correct range. The recommended level for TA is lower for SWG than puck usage.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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