"Happy'Cam'per" wrote in message
...

Margo, thats not true, If I understand it correctly the chart should still
work irrelevant of buffers, you're still adding CO2 to the system!
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ahh, but it is true ;op

You are still adding co2, yes. But you cannot calculate how much co2 you
are getting by using a co2 chart because another buffer other than co2 is
lowering the ph throwing it all out of whack. co2 charts only work if the
only buffers are bicarbonate and co2. Throw any other buffer into the
equation and they aren't accurate.

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Margolis
http://web.archive.org/web/200302152...qs/AGQ2FAQ.htm
http://www.unrealtower.org/faq