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Re: water utility home page

On Wed, 29 Nov 2000, Brain wrote:

> Thanks for the link.  I checked my local water supply report and it said
> nitrate is at 0.05 ppm.  However, my test kit (Tetra brand) reads it at
> about 10 ppm.  I have long suspected that this test kit is not very
> accurate.  Is this confirmation?  I hope the test kit is wrong, it would
> make me feel better, because I'm always battling NO3 in my tanks, maybe it
> is not really as high as I thought?  Can someone recommend a better NO3 test
> kit?

My experience with the Tetra kit is the best possible. I've been using it for
the past 1.5 years or so, after some not so successful trials with other
brands. I use every now and then to check the test with a test solution made 
out of KNO3 and distilled water. It always reads correctly, even after several 
months in the shelf. And it can be coaxed to read with a better resolution 
than the one implied by the color chart. I use KNO3 solutions of known 
concentration in spare vials as comparison, to read down to 2-3 ppm.

- Ivo Busko
  Baltimore, MD