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Thread: Aeration

  1. Back To Top    #1

    Join Date
    Aug 2007
    Location
    Jackson, NJ
    Posts
    61

    Aeration

    I know aeration can reduce TA at low pH (7 - 7.2). I reduced mine from 100-90 ppm merely by directing the flow outlets upward. Pool now in balance:

    FC = 4
    CC = 0
    pH = 7.4
    CYA = 20
    TA = 90
    CH = 125 (at last check)

    I like the effect of directing the jets upward. It keeps the surface moving, looks/sounds relaxing and helps skimmer effectiveness. Is there any downside to this (e.g., increases Cl usage)?
    phil_d
    20,000 gal. vinyl liner pool
    Hayward Perflex EC-65 DE filter w/1.5 hp Hayward Super Pump
    Liquidator w/ 3/8" upgrade
    Aquabot Jr. pool cleaner

  2. Back To Top    #2

    Join Date
    Feb 2008
    Location
    Denton, TX
    Posts
    5,061

    Re: Aeration

    Aeration doesn't lower TA. What lowers the TA is acid additions. Aeration merely raises the pH once it was lowered by the acid and repeating this process will bring the TA down over time.

    The downside to aeration over the long term can be that constant outgassing of CO2 from the bubbling water can cause the pH to continue to climb at a higher rate than normal. This may require more acid to be added to bring pH back down. At some point, you may discover that your TA is too low because of all the acid added over time.

  3. Back To Top    #3

    Join Date
    Aug 2007
    Location
    Jackson, NJ
    Posts
    61

    Re: Aeration

    Thanks. That is helpful.
    phil_d
    20,000 gal. vinyl liner pool
    Hayward Perflex EC-65 DE filter w/1.5 hp Hayward Super Pump
    Liquidator w/ 3/8" upgrade
    Aquabot Jr. pool cleaner

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