I have the liquinator. Too tight, it destroys the orings, and a very bad service of the seller IMO. The DC map tank, its OK, but too small. The J tank and another, dont remember the making. The main problem anyway is that I dont get the right combination between cartos, slotted or punched, some flooding, some who dont feed enough. This new one with the amazing tiny hole, is the best. Just feeds right. And then that tiny little metal ring who keeps the carto on its place, permitting a less tight sealing on the tank, so much easyer to fill,and put a new carto in. I tried myself to punch cartos with a very small hole, and it didn´t work, so I am wondering why it works with the ones they are selling now from smok tech. There must be some kind of a trick.
:Would like to know since this is my first tank experience,how do I know when it's time to get a new tank? What is the usual lifespan of a tank like these?My batteries are a 1000 maH ego passthru & 2 1000maH auto batts. just got 6 of the same 1.5 cartos that came with tanks, so far no problems(once u all got me straightened out
) Could I be getting more flavor or a better vape from a different ohm carto? Is it ok to go to diff ohm cartos with my batts. I read on the site some about ohms and voltage still trying to learn this stuff. 
