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Thread: effect of high free chlorine on Ph

  1. Back To Top    #1

    effect of high free chlorine on Ph

    I have been keeping my FC at 25 to kill an algae bloom. My PH was ~7.4/7.2
    Its reading 7.0 now
    My alk is about 60-70
    Should I let my FC drop before I adjust?
    Does high FC make ph rise or fall
    Thanks

    Mike
    22,000 IG vinyl liner
    sand filter
    LQ 8 gallon

    Jacuzzi Hot Tub
    420 gallons

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
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    High FC doesn't affect the pH, but it does mess up the test. Wait for lower FC before you trust your pH reading.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  3. Back To Top    #3
    tnks
    mike
    22,000 IG vinyl liner
    sand filter
    LQ 8 gallon

    Jacuzzi Hot Tub
    420 gallons

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