I have a 60 gal, vertical CH air compressor. I turned the air pressure off to change the hose connection and when I turned the air back on air started coming out of the black moisture trap on the connection to the hose. The compressor kept coming on the build more pressure but it was leaking out of a little hole on the thing attached to the tank end of the hose. It has done this before but it didn't stay on so long. Is this normal???