Because this forum is more than just a Spyder Gun forum and we are here to help. If you don't have anything constructive to add to this thread or you can't help him, I suggest you don't post. There are a lot of people on this forum who don't even own a Spyder anymore, they stick around because its a friendly forum that you can find help for any marker, not just Spyders. So in the future unless you are helping solve the problem, don't post. Thanks.
As for operating pressure, I think they operate around 3-400 psi, not 100% sure because I'm not a cocker guy. Pretty much any reg would be good.