Re: [APD] KH question

["Liz Wilhite" <satirica at gmail_com>]

Yes, thanks.  And if I am not there to monitor the system this can occur.
So if I happen to be planning to leave town for several days, and have
knowledge of the equipment I have in place and its limitations,  then I
might want to think ahead, right?  :)

Liz

On 11/20/06, S. Hieber <shieber at yahoo_com> wrote:
>
> The only way CO2 is going to "crash" the pH is if you use too much. It
> will reduce pH in proportion to how much is dissolved in the water. If you
> water buffered around the range of the pH before adding the CO2, it will
> hang there until the buffer is swamped.
>
> sh
>
>
> ----- Original Message ----
>
>
>
> > My reference to pH crash -- a rapid, large decrease in pH -- is
> something
> > that can occur with CO2 injection.  I got an off-list email from a
> member
> > who had that happen with water at a lower KH than what is coming out of
> my
> > tap.  "Rumor has it" that pH carshes can happen with water that has a KH
> > of
> > 3.  I was mostly interested in hearing if anyone here could say it had
> or
> > had not happened in their aquariums.  Vaughn's response indicates it's
> not
> > likely.
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-- 
Liz
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