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Re: True or false?

> From: Boulet Stephen-CSB046 <Stephen.Boulet at motorola_com>
> Subject: True or false?
> True or false: with CO2 injection, a tank with a kH of 5 will be depleted of calcium hardness in a matter of days by the carbonic acid if no extra buffering is added, causing the pH and CO2 concentration to drop?

> I'd appreciate some comments on this. What do people use for buffering?

	HCO3-/CO2   That is, KH with CO2.

Paul Sears        Ottawa, Canada