Thanks again, SPRK!
#4 is what I'm about to find out. Hopefully the majority of leaks are towards the top so I can do just that,,,, for now at least. Even eliminating several of the leaks would help.
And there's very little on the web about removing spool-type adapters.
Any suggestions on good tubing, or just use the same type of air-line? It's only supplying pressure to the switch, not feeding the home.
Did you turn the power of before working on it?
220 can give you a heck of a jolt. Did that once behind a wash machine. Wo!