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Re: [APD] new CO2 system



Rich,

I have a needle valve after the 2-bar pressure droper.
I'm now at 40 bubbles per min.

During the day some water pump helps to mix it in a reactor;
during the night, some air pump gives oxygen to the fishes.

No pH regulation is involved;
Normally an emergency valve must dump the CO2
in the room when the tank pressure goes under 40 bars
i.e. after about one year for 20 kg.


Best regards,

Philippe



----- Original Message ----- From: <RMGTBTS at aol_com>
To: <aquatic-plants at actwin_com>
Sent: Thursday, December 29, 2011 7:43 PM
Subject: Re: [APD] new CO2 system




phillipe, do you mean trying to run the system without a needle velve? IMHO the tank valve is not sensitive enough nor stable enough to allow that. Plus as the tank gets lower i would think that the pressure would not stay constant. Bottom line, needle valves failed me and killed some very expensive fish.
rich green
milton ma
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