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Thread: Alkalinity Tests and more

  1. Back To Top    #1

    Join Date
    Jul 2014
    Northern Minnesota

    Alkalinity Tests and more

    Did my first Alkalinity test this morning. Did it twice. First reading was 190ppm. Second was 220ppm. Our other results:
    FC 5+
    CYA 35
    PH 7.5

    Our water is crystal clear. Any thoughts on the high alkalinity?
    Intex 15 ft x 42" Above Ground Pool bought from Amazon (3, 284 gallons)
    Standard pump and cartridge filter that came with the set up (1,000 gph)
    I live in Northern, MN

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Alkalinity Tests and more

    As long as the pH stays relatively stable, ignore TA.

    You might have static electricity on the tip of the R-009. Try wiping the tip with a damp paper towel between drops.
    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!

  3. Back To Top    #3

    Join Date
    Aug 2012
    Mid Missouri

    Re: Alkalinity Tests and more

    In your case TA is not something you need to particularly worry about in and of itself. But because yours is that high it's just a predictor that your ph will have a tendency to rise and require periodic acid additions. How fast it rises will depend on how much aeration occurs. When your ph reaches the point where you want to adjust it, having the TA in the pool calculator makes the ph adjustment more accurate.

    Also knowing the TA of your fill water lets you know if you ever decide to go to a SWCG for your chlorine you'll be making frequent acid additions, particularly early in the season, to keep your ph in line and to bring your TA down. Which is what I have.

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