Problem solved but I thought I'd share my experience here in case it helps others. I recently bought two PT2 and was seriously unimpressed. One worked
sort of
the other less so. Very tight draw, lots of gurgling and very little vapor. So bad that I wasn't even using them. I then added an air flow base to each of them. It made a huge difference. Much better draw and vapor production on one of them. But the second one was still sub par. It gurgled and spit and produced little vapor. I replaced the wicks with cotton. Helped. But not enough. I finally noticed that the lower o ring had a tiny little nick in it. Hardly even noticeable. Replaced the o ring and viola!!! Two perfectly good, perfectly functioning, major cloud producing, PT2s. It's a shame you can't buy something and use it out of the box but the final result was so worth the tweaking. Hope this helps someone.
