[Ron Skeen]

Thanks Michael and Tom, I will try some of the things suggestive. I thinks my tanks maybe installed with both brake tanks up front and the supply tank in the rear of the coach. I only have the one dryer in the rear and thinks boths air supply goes to it first. When I get time I will try tracing lines. Do they make any kind of dye that can be put in air lines to show leaks? I have spray soap everwhere possibe with no signs of leaks. Are there a better substance to use than soap for leak check? Thanks for your suggestion and help.