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Re: Nitrate Test Problem
I am using a Red Sea Nitrate test kit that provides two test methods.
Method #2 uses three liquid reagents and is described to be the more accurate
test. Method #1uses a powder and one liquid reagent. the instructions state
that if method #2 returns a value of less than 2.5 ppm, then confirm with
Problem: With method #2 I just determined 0 ppm. Method #1 however
returns greater than 20 ppm. This is repeatable, even after carefulrinsing
of the test container in tap water followed by a rinse in the tank being
tested. Anyone else have a similar experience? Suggestions? The
instructions state that the local water supply may contain contaminants that
would invalidate test results. They offer no recommended action if Test #1
does not confirm Test #2 results. I'd call the Red Sea customer service rep,
but he is probably busy defending his family.