Quote:
Originally Posted by Mopar_Earl
Unfortunately no LP system will hold pressure long. It will change with tempature and no system is 100% leak proof. The rule is if it holds 8" of WC for at least three minutes it's good.
The RV Doctor: What the Pro's Do - Propane System
The RV dealers perform the tests in the above link.
Earl
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Earl,
Prior to starting this thread I had come across the testing procedure and while I have not connected a manometer up to a stove burner and actually performed the test I'm confident my system would pass at this point. There is a provision in the test that states that the system would initially hold 11" and then be bled down to 8" prior to taking the measurement to prevent regulator lockout (or something along those lines).
Coming from my background as a analytical chemist who has installed, pressure tested, and leak checked dozens of gas chromatograph installations I am struggling with the "why" the system leaks down.
Is it the fittings? Is it the appliance valves? is the line itself permeable to the gas over time (like a baloon deflates)?
My primary concern is that I have a proper operataing system that is safe... and it appears that I do.... from that point it is simply my curiosity getting the best of me...
On to bigger projects now.... One of the kids decided a pantry door would make a nice swing and split it at the hinges... so off to the store to get some bar clamps and wood glue.
Thanks for your replies.