Whenever I try to clean a cartomizer, it just never produces vapor again.. What i do is put them in some boiled water and let then soak a bit.. Then run hot tap water through them. My next step is blowing out the excess water and placing then in a sock and putting them in the Dryer for 10-15 mins.. But then they just never vape again lol.. Is it possible maybe they just are too wet at the bottom still? If someone could give me some advice, it would be greatly appreciated B-)