I'm lovin' my Submarine
tank from Mom and Pops as well. Just got it a couple days ago.
Yeah, the rings are tight.. I took it apart to clean it and try a new carto and
juice in it. It took some doing to get the rings back in just right, but well worth it. It's different, it looks great, vapes great, and it stays bone dry on the outside.. not a drop leaks out. It rocks. Thanks for the review.