The output side started out around 10 psi, I've been upping it gradually once in a while to get the bubble count up, which happens for a while, but then drops down again. Right now I think it's at around 20 psi, but I'm at work and can't verify that. There's a reply from Milwaukee that got posted in one of the threads in the FAQ section with a method to try and get consistant counts, I'll try that tonight. But I don't have a lot of hope.
