I just took a new gauge out of the box to mount on my pump and the needle is stuck at 500psi. Is this normal until the pump starts running or a sign of defect?
I looked at the gauge when I received it and it was fine. It also seemed to be working when I started the pump a couple times. I didn't pay any attention to it after that... until yesterday. When I finished the job and was loading up, I noticed the reading ... I just shook my head.