ok i have an ego-t and i dont completely understand the whole leaking thing but ill give you a rundown on what i do, first i make sure the
tank is clicked into the tankomizer, ALL THE WAY, thats important, second, dont suck really hard at all on them, just suck on them like your drinking a coke from a straw, not hard at all... third after you release the button keep sucking for a few seconds extra to assure your getting all the remaining moisture /
juice. thats what i do and i am fine with it for over 2 weeks on one tankomizer. others have more intense knowledge on the matter like positioning the wick.... etc, and if my techniques dont help you than others might have more extensive knowledge for you...