Hi...
I just got my FT Hana V3 today
and I have tried numerous tanks on it. All sit damn flush and I have no problem firing. tanks with their own airflow like kayfun and tafun is working extremely well, but my Favorite Kanger Unitanks are not getting any airflow = not able to vape 
. I can loosen the connection to get the airflow back but its like a bit shaky it feel like it could fall off anytime. 
Any suggestion?
I just got my FT Hana V3 today



Any suggestion?