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Have had this bontrager co2 thingee for a while and only had to use it a few times. Last time I noticed that when I unscrew the nozzle to release the co2 all the way it will release the co2 into the air instead of into the inner tube. Opening it partially still fills the tire. Is that an intentional pressure release thing or is it just fucked? There's like zero documentation for it and I had to watch an unsubtitled jewtube video by some japanese guy to even figure out exactly how it worked.