The O-ring on one of my emow mega's bit it today. The one that's on top of the airflow control base of it. I'm just wondering what kind of living hell I should expect trying to replace that. Is this thing using the v3 airflow control base I'm seeing for sale online? They look the same but I can't tell for sure. And I found sites selling replacement rings but only for protank2&3. I already rigged a spare ring that came in one of my protank2 boxes around it and it's working, but it was stretched really tight and i dunno how long that'll hold. I really don't want to have to buy a totally new base just for the ring. Or a brand new tank. .....