I have been a longtime smoker but have not had a cigarette in 12 days now. I bought the ego-c starter kit and have been using it for the past 12 days. I was having major problems with leaking all around the seams and losing liquid. It was like a sieve. I even called the distributor who I bought it from who said I was probably sucking too hard on it. I tried to pull on it easier but that did not help. I was going nuts. The booklet that came with the kit said to push the tank cartidge into the atomizer until you hear it click. I did that when I first started using it so there was the hole in the tank. But yesterday I finally just pushed and twisted the tank cartirdge which pushed it down into the atomizer cone farther. That worked and has kept it from leaking. How simple!!!! The booklet fell very short in explaining that. I have been reading on the internet and watched several videos on YOUTUBE about leakage but none of them addressed the issue as being that you need to twist the tank to push it all they way down into the atomizer. I decided to write about my problem in this forum so that anyone else who is having a leakage problem that this may be their problem. It took me 12 days to get it figured out on my own. I was about ready to throw the whole e-cig kit away.