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Thread: Alkalinity Test using DPD kit

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    buddywiser's Avatar
    Join Date
    May 2007
    Morgantown, WV

    Alkalinity Test using DPD kit

    I'm using a DPD Deluxe kit from Leslies and I haven't been able to get a reading for Alkalinity yet. Like the directions say, I put the drops in to turn it green. Then I need to put in other drops until it turns red. It turns bluish, then yellow, but never turns red. I put in about 80 drops a couple times and quit (A couple times). My chlorine is about 8 from shocking. But I waited 2 days and tried again, but the same thing. Help
    24000 Gal, 18x36 Vinyl
    Hayward Super Pump
    Jacuzzi Tri Clops Cartridge Filter
    Heat Siphon Heat Pump

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    SW Indiana
    Blue to yellow is the same transition as green to red, but it occurs in the presence of high chlorine or other oxidizer.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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