My ProTank II cannot get through a full day without eventually gurgling and leaking. It has become a daily ritual for me to remove the head, blow it out, wipe the threads, then tighten it back on. I put a new head on roughly every 5 days.
Is this a common ProTank problem?
Unfortunately, yea the protanks and tanks like the iClear 30 while they usually vape really well (initially) do eventually start to leak and gurgle.
Apparently it's all about the o-ring not forming a good seal but here is one video that shows how you might be able to fix it if you have the original box or can go pick up a new o-ring.
I wish I had found this vid before I gave all my protanks away lol.
Welcome to the group by the way!