Was looking at listing pics of my upcoming inspection and noticed a copper supply line coming from a 420 lb tank that ran about six feet from the tank to the wall penetration with no support. This doesn’t look kosher but I have searched online and on the forum for direction on horizontal support for copper lp fuel lines but can’t find anything. I would assume it would be the same as for water supply so around 6 feet without knowing the exact size of the line but it looks like 3/8-1/2". Any guidance?
Forget code and make a simple recommendation to protect it, or such. 
They don’t have to do it.
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Water weighs more than gas… 
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JJ! You’ve never ate my chili. No you haven’t.
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