[kyleb]

Update: found a significant air leak above wet tank. a compression fitting just needing to be tightened a bit more but in a very tight area but got it. Before the 110 compressor couldn't stay up with it now only runs 11 minutes. Also noticed some bubbles coming from a plastic unit plumed into the same area as the loose compression fitting. I guess it would be a junction area where three lines come in and this plastic thing with 2 small wires on it. Anyone know what that plastic thing is?
It looks to be about 2 inches tall about 5/8 thick and 1 1/4 wide with tapered sides. Held together with what looks like #10 bolts going up from the bottom. The 2 wires are at the top, one on either side. This unit leaks at the top. I have tightened the bolts to the point that I think any tighter would break them. And it still leaks a small amount. I assume it is a type of sensor but not what for. with the wires off the gauge on the dash still works. Little by little.

Sounds like the low air pressure sensor