Ok word to the wise, I just got some help on RC and I'll share what I've learned ... the instructions just say "mix gently" and then put the sample in. My lesson learned is, mix gently for like 2-3 minutes and then still do the 3 minute timed read.
I had asked Hanna technical support whether there should be residual powder before the test, they said yes, but no, you don't want any. I thought that didn't make any sense but that's what's been having me chase my tail. If I let the reagent dissolve completely then I seem to get consistent results. (Yay!)
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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