Hello I received my Expromizer tank yesterday and I like it. It's a Kayfun / Taifun mix. Has adjustable airflow control and the best part for me is that I don't need a screw driver to fill it like a Kayfun Lite+ =Win! My main issue with it so far is that part of the tank is plastic like the Kayfun. But you can purchase a SS section for the tank cracking juices. So far I don't having an leakage or gurgling. Unlike my Kayfun lite+(original) which started to leak at the fill hole which cau