Originally Posted by djgonzo007
With CO2 my understanding is you get one shot and if you missed a puncture then you're gonna have to use another cartridge.
Not true. A 16g cartridge has enough to fill up a couple of tubes to full pressure. All inflators have some kind of controllable valve so that you can trickle a little CO2 in, check to see if it's holding, then fill it all the way. If it's not holding, take it out, check it and patch it, then inflate it again. It's not "one-shot" in the sense that you can't pull and release the trigger more than one time if a patch is bad; it's "one-shot" in the sense that you'll use it to completely repair a single flat, and then discard the remaining contents.
You just shouldn't keep an opened, half-full CO2 cartridge in your inflator for two months.
- Warren