Problem with propane tank

~DJ~ wrote:
New TT with new tanks, first time out camping I ran out of propane in the first tank (7 1/2 gal). I thought it ran out pretty fast but went out and checked the tanks the switch valve was showing red. I turned that tank off and the other one on. Valve turned green again. When I got home I lifted the tank off the tongue to refill. It was way too heavy to be empty. Only took 2.3 gallons.

Is this tank bad or is there a fix? Thanks....DJ

Exact same thing with mine. New trailer with two full tanks (5 gal). Gauge showed green then after several days turned red. I then switched to the other tank which again showed green. I removed the empty tank that also was much too heavy and had it refilled. Took only 3 gal? What gives? A lousy defective gauge? I turned it on very slowly like normal and everything in the trailer worked normally.
Looks like gauge is either worthless or defective.