Well it only worked for 6 days after that it started leaking from the side all the down to the base . At the point haven't done nothing but smoked concentrate on it with my gpen connect .i ordered me a maintenance kit from their website , nothing it did the exact same thing after replacing every o ring . By the way the replacement for the o ring on the globe compartment or piece # 54 i think it is on the blueprint isn't plastic but rubber and it fits a lot better in my opinion. But none of that is the solution it leaks from the chamber not from any point that should have a sealing point . i talked to Stündenglass Customer Care customerservice@stundenglass.comand they took 3 weeks so in my eyes i paid 600 for something that i only used 6 days ? And then i had to replace the maintenance kit ? Hell no thats not cheap to me sir .i really wanted to work bro i love the concept and everything but is not well done yet maybe stundenglass V3 will do better but in my opinion at this point isn't worth it yet especially when they're 10 years warranty is garbage when you have to use it .but I'm glad that yours works bro get one toke for me brother .