I think I know what the problem is... after reading the links Jimmy posted I believe I was letting the primer dry out too much before applying the glue. Thanks for the lesson in pvc solvent welding. I might of known this if my primer can wasn't rusted and missing the label yikes.

Btw Thank you both for the quick replies.

I'm not sure how old the glue was but the top was a bit rusty I suppose I'll just take the safe route and go buy another fitting and some more glue eh ?

Hello, I made my first pneumatic cannon the other day and it was pretty awesome until one of the fitting came loose. I used the 2 part purple primer(cleaner) and pvc cement, now the chamber portion of my cannon has pvc primer/glue residue on it. I attempted to re prime and glue the fitting back on b...