I don't know, but all three of them, the 2 T3S tanks and the MT3S, all drip like mad from the mouthpiece when I have them upside down for filling; part of all my "prep" now includes having pre-rolled paper towel tubes for stuffing in the mouth-end whenever I fill; it at least makes the cleanup easier. Neither the ARO Pyrex nor the Mini PT II does this, so I can only conclude that the "top" of the liquid chamber isn't sealed, in the xT3S's. Which maybe accounts for how prone they are to gurgling. I like 'em, that T3S was the first "real" tank I had (I ain't counting those iClear16's, 'cause they suck!), but they do have their issues -- I guess that's why they're only $6.
I'm looking at some much bigger tanks, for when I get that Sigelei; last night I was showing the ol man what I want for xmas -- a Nautilus.He said "Maybe." Then I showed him the Hypertank 2, just $13 at Desert Vapes, or $10 if I ordered from somewhere in China (because Desert Vapes doesn't have the silver one I want), and that price didn't seem bad to him at all, compared to the Nautilus.
I just stick it between my legs like a skinny soda can.That way I can find it easily when I want it again, and have control of it when I need both hands! I'm getting a pouch lanyard pretty soon, whenever that shipment from HK finally gets here. I figure probably mid-month; tomorrow will be 2 wks since I ordered it, so maybe a couple more. That will definitely make things easier for driving.
You bet I will!
Thx!
Andria
Oh, that's what's going on! Most of the bottom coils will drip when you open them up, upside down. (My Aro's do.) Usually a good size drop or so. Yep, open over a vaper towel. I often run a pipe cleaner through after that. My hunch is that it's the juice that was on the coil, under the chimney. Once you break the vacuum, it runs out. But once cleaned out and refilled, they shouldn't leak in use. And gurgle only if you're drawing too hard or have flavor wick issues.
Ooooh, clever Andria! Show him the pricey stuff first, then say you'll "settle" for something less, he thinks it's a bargain

Wasted both the coils it came with, and one of my own. But I didn't do too badly with no instruction, just couldn't get it to vape. I realize now that I will have to invest more time than I have on the weekdays to get it working. Once I do I know I'll love it...the flavor that I did get from the one hit that worked was incredible.