I use a Pinpoint nitrate monitor. Yeah I hate colour comparison based test kits because I don't know if I'm looking at them in the right light or whatever. Titration ones (ie., where you drip something and count the drops or measure the volume dispensed until you see a colour change are a little better, because apparently I'm not colourblind enough that I can't tell the difference between red and blue, but apparently I am colourblind enough to not see the difference between one pink and another pink).
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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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