New answers tagged kegging
The tank-side pressure is mostly measuring the temperature of the CO₂ tank, not the actual amount of CO₂ remaining. Above the triple-point of CO₂ at about 517 kPa ~ 75 psi, the pressure reading is dominated not by the amount of CO₂, but the temperature, which relates to the fraction of gas vs. liquid in that equilibrium. You'll notice your CO₂ tank will ...
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