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Thread: pH is always high, what should I adjust in my chemistry to maintain stable pH

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    pH is always high, what should I adjust in my chemistry to maintain stable pH

    New to TFP and pools (first year). IG outdoor pool installed 2-3 years ago.

    Used Taylor K-2006 test kit with these results. TFP recommendations for SWG pools in ():
    FC: 4 (3-5)
    CC: .2 (< .5)
    pH: 7.6 (usually 8.0 each day) (7.5 to 7.6)
    TA: 120 (60-70)
    CH 200 (250-230)
    CYA 25 (70-80)
    Salt: 2900

    Pool is crystal clear.

    Should I focus on getting CYA to 60-70 range for a more stable pH?

    Is Natural Chemistry 07410 Pool Instant Water Conditioner a good product to use to raise CYA?
    13.5k gallon, IG-Plaster; WhisperFlo WFE-26 Pentair Pump; FNS Plus DE Filter Pentair; Aquapure PLC1400 SWG; XG ClearVision Nature2; Raypak gas heater;PB4 Booster Pump for Polaris pressure cleaner; SPA; waterfall; Taylor K-206 test kit

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    JasonLion's Avatar
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    Re: pH is always high, what should I adjust in my chemistry to maintain stable pH

    Welcome to TFP!

    To slow PH increases you need to raise CYA and lower TA.

    Natural Chemistry 07410 Pool Instant Water Conditioner will work just fine, but it is much more expensive than the other options. Granular stabilizer/cyanuric acid is much more affordable and does the exact same thing.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: pH is always high, what should I adjust in my chemistry to maintain stable pH

    Thanks... Does it matter the order followed in lowering CYA and TA?
    13.5k gallon, IG-Plaster; WhisperFlo WFE-26 Pentair Pump; FNS Plus DE Filter Pentair; Aquapure PLC1400 SWG; XG ClearVision Nature2; Raypak gas heater;PB4 Booster Pump for Polaris pressure cleaner; SPA; waterfall; Taylor K-206 test kit

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    JasonLion's Avatar
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    Re: pH is always high, what should I adjust in my chemistry to maintain stable pH

    No you can raise CYA and lower TA in either order, or since the both tend to take a while, at the same time.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Richard320's Avatar
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    Re: pH is always high, what should I adjust in my chemistry to maintain stable pH

    Quote Originally Posted by swoodrin View Post
    Thanks... Does it matter the order followed in lowering CYA and TA?
    You'll do them more or less simultaneously. Lower pH and aerate. That takes a few days and multiple acid doses. If you're using liquid CYA, let it mix half an hour before lowering pH. If it's granular CYA, pour it in a sock and hang it in front of a return or let it dangle off a floating pool toy. It'll take a few days to completely dissolve and show up on tests. In the meantime, you can continue to adjust pH and aerate.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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