2012 Thor Tuscany 42' motorhome. Long story short, the tank level gauge that is screwed into the side of the tank is leaking around the threads when I had the tank filled. I tried to tighten but did n...
I suggest teflon pipe dope made for propane and natural gas. Neither tape or pipe dope is a sealer. It's designed to be a lubricant to allow NPT fittings to screw together more easily.