I have been using the eleaf GS Air M tanks with the 1.5 ohm coils and have an ongoing problem with liquid leaking down through the coil base onto the contact pin in the battery. This all seems kind of odd as you can see right through the coil and there is a small hole through the coil base. If you let the tank sit awhile the liquid goes right through to the battery contact pin. Has anyone else had this problem and if so how did you fix it if that is possible? Thanks for any help, Bill