Looking at my engine, coming out of the firewall on the bottom Left is a small tube that sticks out of the firewall approximately 1/2 inch and it drips water from time to time. Does anyone know what this house is and if it is supposed to drip water because it seems like the firewall below the hose is pretty wet.

 

AC drain

 

Yeah, I didn't like the insulation staying wet all the time, either. A 3/8" (I think) PVC elbow fits perfectly.