What are some of the ways you have fixed a crack in a gas tank or does somebody sell a type of "JB WELD" for gas tanks. I was shutting a gate yesterday and my weedeater fell and cracked the gas tank. I called five local shops and no one stocks that tank, a common Shindawa. I had to order one and I will have one in a few days. I fixed one a few years ago, I just can't remeber how!