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  1. E

    FAS-DPD Question

    That would make sense if the diluted sample would have read correctly but it didn't. It shouldn't bleach out with a standard test reading 2.5 should it?
  2. E

    FAS-DPD Question

    I have been using the methods on this forum now for 3 yr and been getting great results. This year I have something new to me going on. When I try and measure the Chlorine I put the 10 ml of water then the scoop in. It turns a little pink in parts and when I swirl it goes completely clear...