It's too bad since I like this pipe a lot. Basically the middle insert in this Peterson is the 9 mm filter plastic that binds the stem to shank. Half of that plastic, the right part was supposed to be glued to the stem (I always thought that it is molded like that) and the left part, that is left sticking out, acts like a tenon. I guess that it was glued at some point in the stem, but due to time passing by and repeated use the glue no longer held together. What would you recommend using to glue it back in? I was thinking about a plastic pistol, you know, one of those that heats up a plastic bar and uses it as adhesive, although ... that has a distinct smell, I don't know if that will ruin the stem or not ... Epoxy, or super glue would also be out of the question since the are toxic ..