Are you sure the co2 is empty? If it really emptied that fast, you definitely would have heard the gas leaking from somewhere, and your tank would have probably iced over from decompression. Is it possible you didn't turn on the co2 correctly? There is the nozzle on the tank itself, and there is also a gas on/off switch on the gas-out port of the regulator.
If the co2 is in fact empty. Next co2 tank, hook the tank up with everything switched off. Then open everything up and check for leaks right away. Pour a soapy water solution over all the connections and look for bubbles.
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Sometimes when I reflect back on all the beer I drink I feel ashamed.
Then I look into the glass and think about the workers in the brewery
and all of their hopes and dreams. If I didn't drink this beer, they might
be out of work and their dreams would be shattered. Then I say to myself,
"It is better that I drink this beer and let their dreams come true than
be selfish and worry about my liver."
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