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Re: [APD] KH question

The danger isn't the buffer but the chance however slim or robust that your CO2 might expel excessive amounts of CO2. If you hve a good needle valve and the tank isn't likely to run out of liquid CO2 while you're away, then the chances are pretty slim,; enjoy your trip. If not, then try to get a better needle valve and if the tank is near empty, refill it before the trip -- might cost you a couple extra bucks but if you're worried otherwise, it can be worth a couple buck, no?


----- Original Message ----
From: Liz Wilhite <satirica at gmail_com>
To: aquatic plants digest <aquatic-plants at actwin_com>
Sent: Monday, November 20, 2006 3:21:08 PM
Subject: Re: [APD] KH question

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?  :)


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.
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