[APD] Re: CO2: How much is too much

[Dave Gomberg <dave1 at wcf_com>]

At 09:02 4/24/2005, John T. Fitch wrote:
>  I looked at the controller and saw
> that the pH had dropped overnight from 6.7 down to 5.9!  So, all night the
> probe was telling the controller that the pH was above 6.7 and to keep
> pumping in CO2.


This is one of the many reasons folks who have been using CO2 for a while 
run it 24x7 or with a shutoff timer at night that does not cause problems 
if it fails.



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