I don't think it leaks until after I have started vaping. Yeah, the tube is on right side up. I hate to complain to the place where I got it, because he actually sent the charger to me for free because he didn't answer my questions about the device soon enough when I ordered it. It was really nice of him, and he didn't need to do that. He's a new forum supplier.
He doesn't have the coils in stock, because I looked. When I get enough money saved up, I want to get some flavors to DIY, so I will probably choose a place with flavoring which also carries the coils. I have always bought Kanger products, so it never occurred to me that Innokin didn't include extra coils with their tanks.
It's funny, but I keep hearing about how famous Kanger tanks are for leaking, but so far, I love all the Kanger tanks I have. I also hear about the wonderful vapor from this tank, but I'm not getting much at all. So far, this is the worst tank I have.