I dont understand what i am doing wrong. I also have 2 Aspire Atlantis 2 tanks and a Horizon Tech Arctic. Both are just fine, no leaks not vaping hot...they're perfect. I noticed the subtank and the zephyrus are built similar, so maybe the way they are built has something to do with it. Does anyone else have these problems or is it just me? If so how did u fix the problem?