Originally Posted by dshay
Awesome! Thanks for the info, how would you know your co2 tank is getting empty then?
The only way to know how much CO2 you have left is to weigh the tank and subtract the tare weight. As long as the temperature is constant, the high pressure gauge will read the same until all of the liquid CO2 is gone, and all that's left is vapor. At that point, the gauge will start dropping rapidly, and you'll know that you're almost out of gas.