The Dangers of Juuling National Center for Health Research Problem with bubbles stuck at bottom of the pod, tried flicking, shaking and blowing methods but nothing helps. Tired of getting trash hits every time. Any suggestions? Seems to be a common Pod Device not hitting real fix (works for most devices) Former Juul exec alleges the company shipped tainted vape pods Los Angeles Times JUUL Not Working? 10 Common Problem Tips and Fixes