I cannot get in touch with the company, the info link is bad on their web site, and I could not find anything on line. I am trying to hook up the residual valves. The brass fitting looks as if needs to come out and be replaced by another fitting that came with in my bag of goodies. But the brass doo-hicky is really in there and looks to be fused with some sort of goo. I don't want to force something and damage the valves. Can anyone help?