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Re: CO2 end of tank experiment.

To: Aquatic-Plants at actwin_com, Dgrim62 at cs_com
Subject: Re: CO2 end of tank experiment.
From: "Chuck Gadd" <cgadd at cfxc_com>
Date: Wed, 13 Dec 2000 02:11:18 -0700
References: <200012130848.DAA04426 at actwin_com>

> The 20# CO2 tank that services my 125 gallon aquarium is about to go empty. I
> am going to let it go all the way down to empty and see if there are any

> pressure gauge and adjustable step-down pressure gauge), with a solenoid and
> a needle valve. A pH controller turns the solenoid on/off.

Even if the regulator dumps, you won't see anything, since the pH controller
won't let the pH drop.  It will just close the solenoid.   The pH might drop a
little bit, since a large amount of CO2 might pass before the solenoid shuts it
off, but then the pH will rise back up, then solenoid will open momentarily,
then close again.

--
Chuck Gadd

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