I made a discovery yesterday!
If you have two propane bottles and they are separated by 60 inches or more, you are required to have a step down, 30 psig output regulator, usually on the curbside bottle**.
OK, with that said, I had a problem last fall where I lost feed from that regulated bottle which was far from empty. I have a new two stage auto change over regulato to install but want to do both
but would like a manufacturer and a part number if anyone has it available - that step down regulator is in a tight spot to see without pulling it out. Of course, I could just eliminate that step down regulator too, but ..... see below
**FYI : The NFPA 1192 Standard on Recreational Vehicles says:
"5.3.11.2 Propane system pressure shall be regulated to a pressure of 30 psi (207 kpa) or less within 60 in. (1.5m) of the container outlet."