You could be correct Jon. Looking at the Air schematic it looks as if you`re pressrizing the whole system. Found a leaking elbow connector where the air line attaches & wonder how to go about repairing it. Thier are two elbow connectors attached with 5 inches of hose between them. It`s leaking at the ferrell which holds the hose inside the elbow connector. any way to repair w/o removing the connector?