Here's my thoughts on the tank system by Uwell. Basically it works and fills okay. Major gripes are unscrewing the top piece with just the drip tip and seal piece is crappy because you can accidentally unscrew the tank itself because it joins with two metal pieces encasing the glass tank wall. Fluid will dump into the airflow chamber and ruin a tank of liquid. Also, there is not enough airflow in my opinion on the tank system. If you grip the top tank metal piece and then very carefully unscrew the top seal with the drip tip you can refill the tank without issues.
Pros are it's made from I guess d-series steel alloy. D is a steel used for industrial cutting blades and long use application with little sharpening. The tank system itself is long and heavy, but good quality. Have had some minor dings in the black paint they use to make my unit black so expect a few silver-colored nicks and dings to get onto the tank system with use.
The smok tfv4 to me seems superior because you just twist the top to the side and fill that way. Saw rip trippers review of the tfv4 and he mentioned seal grommet issues like flecking and falling apart. ymmv considering all of these mentioned issues.
Overall happy with the uwell tank and have been using it for the last week. If you buy the black unit the coils are still stock silver color so expect a little variance seeing the silver coil through the black, well everything else is black, steel.
Pros are it's made from I guess d-series steel alloy. D is a steel used for industrial cutting blades and long use application with little sharpening. The tank system itself is long and heavy, but good quality. Have had some minor dings in the black paint they use to make my unit black so expect a few silver-colored nicks and dings to get onto the tank system with use.
The smok tfv4 to me seems superior because you just twist the top to the side and fill that way. Saw rip trippers review of the tfv4 and he mentioned seal grommet issues like flecking and falling apart. ymmv considering all of these mentioned issues.
Overall happy with the uwell tank and have been using it for the last week. If you buy the black unit the coils are still stock silver color so expect a little variance seeing the silver coil through the black, well everything else is black, steel.