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Re:about KH buffering capacity
"It is possible for peat to invalidate the KH-pH-CO2 relationship. Peat
do that by releasing weak organic acids into the water that can be measured
as part of the KH. The KH-pH-CO2 relationship assumes that all KH is
produced by bicarbonate. If that isn't true the the relationship is
incorrect. The effect causes the KH-pH-CO2 relationship to overestimate
amount of CO2 in the water."
I am not sure about the measurement of the KH part. Can you teach me more
about that or let me know where I can read more about that?
All I knew was that any acids will lower the real carbonate/bi-carbonate
concentration & pH and the relationship of actual KH to pH to CO2 cannot be
H+ + HCO3- <--> H20 + CO2
I did not realise the KH measurement part. Sorry for the misleading