Jarmstrong....You da man!!! I knew it had to be something simple and stupid. I've been shooting for over 40 years, I've been an avid hunter for 35 years, I shoot 1000yd competitions, PRS, skeet and trap and feel like I know a lot! Maybe I do, but I can always learn more, that's for sure! I've been shooting springers forever, got my first Beeman when I was 10yrs. to shoot woodpeckers off all of the neighbor's roof top's to keep them from jamming acorns under the shingles. I got .25 cents per woodpecker and all the shooting made me a lot of money while also making me a great shooter quickly! However, the PCP game is certainly new to my boys and I. Occasionally we get a wake up call like this one...something so simple and easy but we haven't been shooting PCP's long enough to know about it. I tried opening the valve slowly, quickly, medium, etc... Nothing worked. I thought it was the pump but I never had problems with my Hatsan. I started to worry it was my new Brocock...oh snap, not the new Brocock. Anyway, thank you for the quick response, I've been waiting to have a day off to shoot a bunch and measure velocities, accuracy with different pellets and get it 100% dialed it. Again, THANK YOU! Kevin