Re: Aquatic Plants Digest V2 #477

On Sun, 26 Jan 1997 03:39:02 -0500, Aquatic-Plants-Owner at actwin_com

> How long is a lifetime of a 20lbs CO2 tank?

Well, the molecular weight of CO2 is about 44, so it weighs about
2g/L.  So 20# is about 4500L or about 1000 gallons of CO2 at normal
conditions.  If you use a gallon a day it will last 1000 days. 
Different rates, different durations.   Dave

Dave Gomberg, FormMaestro!      San Francisco CA USA   gomberg at wcf_com