new to this thread, my experience with leaks in the aromamizer is the wick not covering the feed holes where the juice comes through. also, if any cotton is hitting the walls of the chamber after your build, it might cause liquid to run off the sides and out of the vent holes. i suppose spit back would cause the same thing to happen. i messed around with different builds ( horizontal and vertical) and found that the vertical works best. wicks running down the middle. long story short, my tank only leaks when it's been sitting in my car for too long in the heat. other wise it doesn't.
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