There should be a cutoff valve between your valves and your back flow preventer. Your air hook up should be after the valve to the bf.
Project time!
The air connection is after the BF, but there is no valve between the air connections and the BF and no room to insert one. It's easier for me to be careful than to re-engineer the plumbing.
Last edited by Gman; 10-07-2019 at 19:35.
Liberals never met a slippery slope they didn't grease.
-Me
I wish technology solved people issues. It seems to just reveal them.
-Also Me