I have a bender that looks alot like the one on e-bay right now. The over flow jar has the shut off valve directly threaded into it but the shut off is stuck. No sure if it's open closed or some where in the middle. How can I tell. Is there a good why to loosen it and do I really need it? Next the top of the bender jar itself is a plastic elbow. It also seems to be stuck. Any trick to un-stick this. Also are replacements available if/when I break it. Now I know one of the plastic parts is a check valve. The T looking thing is also a check valve but I'm not sure how to put it together. Been to all the archives but the ones that I really need are old and the pictures are not attached. Any help would be appreciated and I can tell you any pictures would even be better.