SpudFiles

Well, as I've said earlier, I have all this 1.5'' and 3'' PVC sitting around. As I troll the internet, I only seem to find 1'' spinkler valves.
So now for my pneumatic pneub questions:
a) I've seen 1.5'' valves, but are they are rarity in general?
b) Is there a site (like bcarms) that will sell me a custom-modded valve?

check sprinkler.com, they might have a 1.5" or 2" sprinkler valve. Anything over 1" is actually kind of rare and not very cost effective, two 3/4" quick exhaust valves would probably work better and are already set up like a modified sprinkler valve. QEV's are intended for air and open a lot faster than a sprinkler valve

they have a 3" one I think... several hundred dollars though.

So would I save more money just buying some 1'' pvc?