I got 2 BB's sitting on my desk that have been waiting a while for new coils. They are more work to recoil than my usual KFL's. And the tank on one of them maybe needs replacing. It seems to leak from one side of the glass cover. I move the glass, jiggle it from side to side and reclose it, sometimes that fixes the leak sometimes not. Maybe the seal is on the way out. I did get 4 replacement tanks a few years back, took a quick look and couldn't find them. Might have more enthusiasm if they weren't set up with my least favorite mixes.