I have been using tanks since February, and I love them. However, recently, I have been having major issues with them. As I have replaced dead cartos, the new ones just don't seem to work correctly (regardless of ohm rating). When I put in a new cart, fill the tank, and give it a good 24 hrs to saturate, the first draw causes the cart to pull in most of the volume of the juice in the tank, starts guttering, and then commences to leaking out all of the juice. What is happening? Help, I don't want to go back to analogs!