is old co2 bad to force carbonate with

[dabrews22]

I have an old co2 tank with lots of gas in it. Probably 5, 7 years old. Should I get some new gas or is that stuff alright to carbonate with

 

[TopherM]

As long as it's under pressure in a sealed tank, there's nothing that "spoils" the CO2. It's good as new!