It looks like your going to keep posting the same question in diferent treads,more or less.If your not going to take the advice of the Bro's on this board why ask for it.Plain and simple if your going to put your gear in bottles that are not sterile,then why bother with using a new pin every time hey now that I'm thinking of it you dont have to use alcohol to clean the stopper or to clean the site of injection.Come on take the advice of the Bro's on the board and do yourself a favor and save yourself a trip to the doctors office and keep the GEAR in the enviorment it supposed to be in STERILE.