Your tank should have air holes on the base of the tank. You should be able to close those down to whatever you like by turning the ring. If you are unsure look at the manual that came with the gear. This should lessen the amount of air you are pulling through the tank. Just do not close it all the way. You still need some air to keep the coil cool.My little ego stick had 2 tiny holes, and I was using 70vg/30pg 12mg and it's the same liquid I'm using in my new DL mod device, I did just realize I was pulling very slowly from my new mod device and it was making me cough. I just tried pulling faster and didn't cough so I guess it's going to take me some time to get used to the huge difference in the airhole ventilation
And you can probably use just about any tank on the mod that you choose. 510 threads are the standard on most tanks and that is what the threads are on the gear you have.
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