I remember a while back some were trying to figure out how much propane they had in their tank. I pulled mine this weekend and had it filled. I did not weight it before Dillon but I did when it was totally full. The tank and propane wet 20#. Tare weight on the tank says 10.00. Good for thought. Art Harden Tortuga Catalina 320 937-477-5544 (m)