Cheers PeteS. Hopefully this will work for all future models that I make. I know where all the leaks are, but the contact glue that I used to attach the bike pump valve starts to bubble when pressure exceeds ten psi. So superglue and a vacuum should be all I need? Wonderful. Your help has been much ...

Cheers guys. That worked a treat. And now I can get the system up to ten PSI before my glued joints start leaking. Again this is my first cannon, so im just following a simple design. I am thinking of using a hard setting resin around each glued joint and the pump valve. Also... Rubber to PVC... Is ...

Hey Guys and Gals, How can I make a Male to female joint air tight without gluing it together? This is for my air cylinder to ball valve and ball valve to barrel connections. As it is my first spud gun, I am rather lost. Help?!
cheers.