Co2 gauge reading

[arborman]

I got a co2 tank that was pre filled with my keg kit. It has a gas gauge on it, but its showing that it needs to be refilled?? I just hooked it up to its first keg, can't imagine its truly empty? Are those gauge readings accurate? It is putting gas to the keg

 

[rajun50]

Is the tank inside a kegerator or fridge? If so, that will cause the high-pressure gauge to read low. Otherwise, you may have a leak.

 

[chickypad]

As mentioned the high pressure gauge shows the pressure in the tank, which is a function of temperature not how much liquid CO2 is left in the tank. To accurately measure that you need to weigh the tank and then subtract the tare weight.

 

[arborman]

Got it, thanks... The tanks in a fridge, so it makes sense now