Thanks for the compliments guys,

ammosmoke: Sorry, for the confusion, I thought you were talking to me.

Killjoy: Yea, I have been looking at ways to make it spring-operated.

turbohacker: I've been researching burst disks a bit, and have decided that I'm going to go with them next for a more ...

ammosmoke: I know you are just trying to help, but could you please read all the posts above before you post something like that?

Matt221985: I used two different sizes of hole saws. If I have the time I can look at what sizes i used for 1 1/2" and 3" PVC.

It's a CHEMTROL valve made by Nibco. It can handle water and air up to 150 psi.

Yea, at some point I planned on making a bi/tripod out of 1/2" PVC. Most of the time I just shoot colored ice out of it into the distance.....

I can't keep up to the replies lol.... as I said before, I know that the 4 parts on my gun are DWV, but holding a constant pressure of 120 overnight says that I will be fine with what I am using the gun for.

BTW, thanks for all the positive feedback!

ShowNoMercy: I used a cleanout cap so it was easier to mount, and a ball valve because it was just collecting dust previous to this project.

th3p0p0: I realized this today, but i have taken it to 120 psi and let it sit overnight. I realize that this is quite a danger factor, but considering that I ...

Shot of the right side of the gun
http://i36.photobucket.com/albums/e28/mountbkr6/cannonrepainted1.jpg

Left side
http://i36.photobucket.com/albums/e28/mountbkr6/cannonrepainted5.jpg

Valve & Elbows
http://i36.photobucket.com/albums/e28/mountbkr6/cannonrepainted4.jpg

Barrel support and ...