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Thread: low alkalinity

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    angiedubberke is offline Commercial pool users, operators, owners angiedubberke 0
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    Default low alkalinity

    Ok...so I have a 2500 splash pad (slide, water features). For the last couple weeks I can't keep my alkalinity up. I am continually adding alkalinity increaser & hours later it is at a 50. Combined Chlorine is .2, ph staying at a 7.4, calcium is 200, Acid is 30...please help!

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    BigDave's Avatar
    BigDave is offline Lifetime Member Whizbang Spinner BigDave 3 stars BigDave 3 stars BigDave 3 stars
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    Default Re: low alkalinity

    It's predictable that with constant aeration you'll lose alkalinity as carbon dioxide leaves the system. You might be able to slow it down a bit by letting the pH rise up to 7.8 or so.
    12'x24' oval 7.7K gal AG vinyl pool; ; Hayward S270T sand filter; Hayward EcoStar SP3400VSP pump; hrs; K-2006; PF:16

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