Thanks for the tip but its not the orings though. I've lubed and even removed them (for testing). It seems to be the mechanism that is "jammed".Lube the threads and o rings on the juice flow contro, it helped with the authentic so should work on the clone as well
I'll take it all apart as best I can when I have time and see if there is something else to be done about it.
So far on the 4th refill with the juice flow open and no leaking, so at least its functional