Shortslide,
I have the same setup. The brass knob on the left is definetly the pressure release. I too ordered a line with female quick connect at both ends. This tank is the Omega Patriot and it has the large black or gray knob on the top. I also have the Omega 74CF standard tank that has the black yoke knob on the side. The Patriot tank has the small gauge that shows what air is in the tank and the large gauge on the tank shows the psi put into the rifle. I don't understand why Omega doesn't provide a instruction manual on their tanks and a instruction sheet on the Omega dry air filter system. I'm confused as to what the procedure is to be followed for removing the main valve system when the tank is inspected for its interior condition after five years use.
