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Thread: Rain and PH ???????

  1. Back To Top    #1

    Join Date
    Mar 2012

    Rain and PH ???????

    I have a 24,000 gl pool the average depth is about 4 ft, we got close to 2" of rain yesterday and last night. My pool level went up 2" is all, But my ph went from a 7.5 to a 6.9 and my TA went from a 80 to a 60, what give's?
    21x42 olympic sports pool
    18000 gal
    Intelliflo vs pump
    Pentair ic40 SWG
    Suntouch control
    TR100 Pentair sand filter
    Letro ledgen II pool cleaner
    Vinyl liner
    TF Test Kit's TF100

  2. Back To Top    #2
    linen's Avatar
    Join Date
    Jul 2010
    Twin Cities, MN

    Re: Rain and PH ???????

    Rain can have very low ph. See this post:
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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