So FED UP with Propane. Advice Please

richardcoxid wrote:
The OP indicates that “EVERY NIGHT the propane system shuts off”.

That tells me that the Propane System is “OK” during the day, then in the evening when the Furnace starts running the Propane “shuts off”.

That sounds to me that the EXCESS FLOW valves in the pig tales are shutting off. Have a licensed Propane Service Man check them out.

For those that don’t know the “code” requires that Excess Flow valves be in every Propane system so that in case of an accident and the pig tales are broken they will shut off the flow of Propane.

Yeah, my bet would be the excess flow preventers. Not only do your pigtales have them, but every "spud" in your system and also the Stay-A-While type T's and the similar fittings to let you hook up your BBQ to the propane system. Also, A few years ago I had a similar problem using picnic bottles to supply my RV system when parked remotely. Since I had drilled out ALL other flow restrictors, I knew it wasn't them or the regulator. I had a talk with the Manchester Tank engineers and learned that some 20 or 30 pound bottles have overfill prevention valves (the main shut off valve) that have a flow restrictor in it as a result of the valve design. They told me to look on the side of the valve right under the handle for the word ITALY cast into the brass. These valves do not have the restrictor. I found the 20# tanks at Lowe's and bought 3. Have not had the problem since. If you intend to go this way, when you get the tanks purged and filled the first time make sure the gas company puts some alcohol in the tanks to prevent any moisture form freezing in cold weather. All should do this on first purge and fill but many don't know how or are too lazy.