Is the Pico a poly tank or is that one glass?
Its not glass , i already cracked one by screwing top way to tight after filling it and it leaked right away.
Took it apart refilled same thing leaked .
Took it apart again unscrewing top cap and then noticed small crack which caused it not to properly pressurize and thus leaking upon refill.
Anyways have bought spare tanks for it from Ft which 1 was shown in this thread.
Ramblin on i find i like this tank for me personally is basically a mtl tank not airy, put in the clr .5 ohm contact pin that has larger air hole out of curiosity and it became airy which i do not like so changed it back to the 1 ohm clr pin.
I use different o-ring from another posters suggestion on top of clr adapter and works well.
I like this tank a tad bit more than the ego one tanks for ease of filling and flavor but not far better tank just a tad better but that is just personal opinion for the e-liquid used in it and the way i vape or perhaps it has something to do with the chimney in ego and the pico -s.
Have 3 pico-s in rotation and 1 ego mega v2 as well for total of 4 that i vape with.