So yeah, don't over tighten those threads on your clearo/atomizers. Ruined my one kangertech emow. The bottom ring which screws onto the battery separated from the rest because it was screwed on too tight. So basically now I can't get the tank open to refill it. Fortunately I have two of them so I can keep on vaping. O well, was looking for an excuse to get an Aerotank V2...