How do I get them to actually take in juice? I've got my holes punched(pretty big) and I've tried filling it with juice before putting it in the tank. I can't use the method with filling the silicone cap because theres a stopper by the connection. Even with a full tank the coil still glows red. Also who the hell designed this washer cap thing? Why not use threads and make it easy to use? I've already wasted about 5ml of juice from this.