Hach 5B Water Test Quesion

Discussion in 'Water Softener Forum, Questions and Answers' started by Treeman, Dec 24, 2016.

  1. Treeman

    Treeman Member

    Joined:
    Jan 29, 2010
    Location:
    Michigan
    Knowing that my water hardness hovers around 30gpg +/-, I followed directions from Reach4's other posts and carefully diluted my water 50% with distilled water (still one test tube total).

    When I first tried the test with only distilled water, it immediately turned dark blue. With my 1:1 diluted water, pink after adding the reagent, at 15 drops it turned a light purple, indicating about 28 gpg.

    Adding 4 more drops of the titration fluid never turned it darker blue. Is this normal? I wonder if adding distilled water changes anything? Has anyone ever contacted Hach to verify that dilution with distilled water keeps results proportional: 1:1 dilution results x 2 = reading?

    Thank you.
     
  2. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    I am wondering if the waters are not completely mixed by the time you start dropping. Maybe if you premix the water in a different container, the mix will be more uniform
     
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