Co2 Pressure - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 3 Old 06-21-2012, 04:10 AM Thread Starter
JImi's Avatar
Co2 Pressure

Hi Guys,

I am a bit concerend. Over the last few days I have noticed the working pressue, when the solenoid is off, is higher than it used to be. It used to sit on 5 and drop down to 2 when it started now it sits on 6 and drops down to 2 when it is started.

Shoud I be worried about this?

It is an Azoo model that does not have a valve to change the working pressue. Please help on this as I am very worried.

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post #2 of 3 Old 06-21-2012, 08:14 AM
Geomancer's Avatar
I'm afraid I've never worked with a CO2 system in an aquarium so I can't really offer any advice.

My only thoughts are, perhaps it is just due to the room being warmer as we enter summer?

The ideal gas law is PV=nRT where P is the pressure and T is the temperature. So acording to that, if the rooms temperature (and thus the gases temperature) increases the pressure (P) must increase since the volume of the cylinder (V) and the amount of gas (n) is a constant.

Does any of the equipment have a psi rating on it? I wouldn't worry unless you are exceeding (or are about to exceed) the ratings of the devices. 6 psi isn't very much, I believe cylinders are filled up to a few hundred psi.
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post #3 of 3 Old 06-21-2012, 03:17 PM Thread Starter
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Sorry they should have been multiples of 10 so 60 20 50
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