Air Supply Modifications
For the air supply modification, I bored a 1 inch hole in the appropriate
place in the reserve box with a Forstner bit, through which is mounted a
PVC connector "U" fitting. The supply hose is a light, but air tight, flexible
piece of tubing. The connecting support in made of "stacked" plywood 1/2
inch thick, which the battons butt up against.