X2. I have never bled any propane lines. Actually, over a period of a month or more without use, with tank valve closed, my lines gradually lose pressure, so it's kind of a self bleeding situation. Never smelled any gas escaping, but my lines do bleed by themselves.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, and Mindi (dachshund)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.