First, blow out the EVOD from the mouthpiece to the 510 connection while keeping the EVOD upside down, and into a Kleenex. Second, make sure your PG ratio is at least 70% PG. Third, don't remove your flavor wicks, and/or consider exchanging the silica wicks with cotton wicks. Fourth, keep your heat around 7 Watts (YMMV), and depending on user and juice. Fifth, don't inhale too hard, longer slower draws will improve the vape. Sixth, when you start to hear the first gurgle in the EVOD, insert a pipe cleaner or QTip to remove excess juice. Seventh, you must clean the heads frequently, and replace them when they can no longer be cleaned. Depending on juice and temperature, you can both caramelize and carbonize your wicks, which will lead to flooding and leaking. In no time, these actions become second nature, and you become a happy vaper. I enjoy my EVOD's, particularly when out and about. Very nice vape, imo. Vaping requires a little effort, from time to time, to maintain the best vape. Good luck, Power up and Vape On!