If I barely crack each valve it will run normal, but no bubbles, if I open just the shortest run it revs up and down? I have a 3/4hp compressor one of the best possible it has to push this? I switch the 15amp 2 pole to 20amp 2 pole no difference.. It has to be in the diffusers or something..? My pressure gauge goes up to 30 psi in single increments I can close all valves and it does nothing? I'm starting to think my pop-off is leaking or something