I just buy one, Milwaukee. I have installed as stated in the manual, but the low pressure gauge does not rise and release so many bubbles. After a few minutes the bubbles flow fall until don't go out. Do you not know that could happen with him ?. If I take the gauge up to 10 psi, the bubbles coming out are exaggerated (50 per second) Do you use the needle valve to regulate the bubbles? Greetings from Mexico!