The compressor has been running for a while now. Look at the top photo, you will see two meters. The meter on the left tells us how much pressure is in the tank. The meter on the right allows us to alter the pressure by turning the black valve attached to it. In our case, we want less pressure and will adjust it to about 80 lbs. If 80 doesn't work, we can readjust the pressure until it is right.
