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Seattle_Aquarist · 11-21-2008, 07:10 AM

Hi supersmirky,

I agree with vancat, avoid "end of tank dump". I change as soon as the pressure drops below 800 PSI. At that point the liquid CO2 has all been converted to gas and the pressure drops quickly (I run two tanks off of my tank).

11-21-2008, 07:10 AM	#6 (permalink)
Seattle_Aquarist Senior Member Join Date: Mar 2008 Location: Seattle, WA Posts: 1,277 iTrader Ratings: 7 iTrader Positive Rating: 100% Plant Points: 69100	Re: When is it time to refill CO2? Hi supersmirky, I agree with vancat, avoid "end of tank dump". I change as soon as the pressure drops below 800 PSI. At that point the liquid CO2 has all been converted to gas and the pressure drops quickly (I run two tanks off of my tank).