Some questions:
What can leak when it's cold and not leak when it's warm...fittings, valves, or bags, any one of those or all? If a fitting or bag is leaking it seems obvious, but if a valve is leaking where does the air go?

I've tried to look at the air suspension presentation but I'm on a Mac and didn't get very far. Surely a Prevost tech can show me how it all fits together so I can understand it better.