JGsaws wrote:

Mine was a pain getting top cap on and off almost gave up on it too I finally changed the two O-rings in the top cap now it goes on off no problem, used supplied spares maybe they were ruff tore or expanded? also agree on everything minimag03 & carrion4worm posted. I would not recommend this to a new to rebuildables vaper. I use mine everyday great tank

I never tried replacing the o-rings... I really should have thought about that before now. I had high hopes for it and wrote it off in the huff. I probably would have left it to roll around in a container of vaping casualties forever if I hadn't seen how incredibly cheap they had become.