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Dan Dixon wrote:
>I enjoyed the rant and agree with the point (i.e., tracking changes is more
>important than absolute accuracy). I am just wanting a test kit that is more
>sensitive than the AP thing I have, which measures in 20ppm increments (and
>that never reads even to 20ppm). The Tetra kit Karen mentioned that reads
>12.5ppm increments still seems too insensitive. Is the SeaTest kit able to
>measure in 1 or 2ppm increments between zero and about 15 or 20ppms? I read
>somewhere that about 6ppm is the ideal level for plants. Opinions?
It reads accurately enough for my purposes both in the low range (0.1-1.0
in .1ppm increments) and in the medium range, 1.0 to 10.0 in 10ppm
increments. Same test, you just dilute the water sample with water known
to have 0 nitrate, and multiply the result by 10.