I have always gone by the theory that, if it's a metal tank fill it with stabilized gas before storage. That will avoid rust in the tank.
If it's plastic you should empty the tank by running it dry before storing.
Using stabilizer all the time is the best way to go to avoid condensation
and a "senior moment."
Rav, i perfer a little gum out from time to time rather then rebuild.
I've never ever been able to re-adjust a needle valve.
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