You might as well use up the gas that is in there.
The CO2 already in the tank doesn't know or care that the tank needs to be recertified. That's a pretty big tank; you might never need to refill it -- kinda like the almost-full oxygen cylinder in my garage since the 90's.
The CO2 already in the tank doesn't know or care that the tank needs to be recertified. That's a pretty big tank; you might never need to refill it -- kinda like the almost-full oxygen cylinder in my garage since the 90's.