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Which one is correct?


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So I dont get it.


With distilled water




Looks like a match.


With samples taken the same time, a little closer but still not the same.





Guess I will just have to invest in another brand of tests to get a different opinion.(scratch)

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  • 2 months later...

Did you try using the tubes with the opposite test kits to rule out the tubes being contaminated? New tubes are cheap... I know at least one API kit will leave a residue that throws the other tests but can't remember which it is so I keep them labeled and don't use each tube for any other kit.


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