I read the whole post about the tanks....and I just don't get it! LOL I have an Ego, Kgo and a Riva (yeah, I went a little overboard when I first started). I normally use either Boge 2.0 or Resurrector carts, but I am a chain vapor and constantly have to keep refilling them! I know it's better than dripping, but it's still a pain. What exactly do these tanks DO? Do you just screw them onto a battery?? Am I just that dense that this information feels like it's over my head??? LOL!! Help!