Pressurized CO2 Regulator Pressure? - The Planted Tank Forum
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post #1 of 6 (permalink) Old 08-01-2006, 09:02 AM Thread Starter
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Pressurized CO2 Regulator Pressure?

What pressure should the regulator coming from a pressurized CO2 system be set at? 15-20 psi leading to a needle valve ok?
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post #2 of 6 (permalink) Old 08-01-2006, 12:58 PM
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That should be a good starting point.
Due to a bad reactor design I originally had, I had to turn mine up to about 30 to get a consistant bubble rate.

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post #3 of 6 (permalink) Old 08-01-2006, 06:47 PM
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I keep mine at 25. Any lower and the adjustment on the needle is too finicky.
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post #4 of 6 (permalink) Old 08-03-2006, 04:11 AM
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I keep mine at the lowest pressure that will maintain a constant flow through the needle valves.
For me that pressure is 12 - 15 psi. I have never gone any higher than 15psi and rarely have to touch my needle valves due to poor flow rate.



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post #5 of 6 (permalink) Old 08-17-2006, 07:27 PM
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I have a double regulator. The first knocks the bottle pressure down to 40# and the second to 2#.
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post #6 of 6 (permalink) Old 08-17-2006, 10:16 PM
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Originally Posted by agdavis
What pressure should the regulator coming from a pressurized CO2 system be set at? 15-20 psi leading to a needle valve ok?
I think its going to really depend on your needle valve.

Ive had one where i needed to set it to 25-30lbs to keep it constant and another one under 20lbs worked fine.
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