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> Date: Thu, 17 Jul 1997 20:15:59 +0000 ( )
> From: "Roger S. Miller" <rgrmill at rt66_com>
> The difference in conversion would account for a 22% difference in the
> Anyone else want to weigh in on this?
The formula "CO2(ppm or mg/l) = 3.0 * KH (dH) * 10^(7.0-pH)" seems to
match well with measurements made with a Tetra KH test kit (10 ml of
sample water), Lamotte narrow range pH test kit and a Lamotte CO2 test
kit. So I vote for that one.