Well after leaving the caps off all night the chemical smell is gone and the juices are starting to taste better..
Now I'm just fighting with this Kanger T3, worked flawlessly last night and this morning but now its leaking everywhere. Oi vey.
I've also left the caps off mine this past weekend and found that they definitely had less of the chemical taste to them. YAY!
I couldn't tell you from experience, I haven't tried a T3 yet. I'm using a T2 now with no issues, and waiting on vapmail with a few T4's and an Evod.
I've seen many videos on youtube suggesting taking the outside apart and putting it back together carefully, apparently the parts may not be lined up properly causing leaks in the seams.