I just purchased a 2001 Carver 404 CPMY with gas engines and after the boat sat for 2 weeks, we noticed a strong smell of gasoline in the aft stateroom. Upon further inspection, the bilges were dry and the engine room did not smell. The next time I fueled, I tried filling the auxiliary tank (which is located between the aft stateroom and the transom below the cockpit) and lifted the hatch to see what was up. As i fueled, I saw gasoline dripping from the bottom of the tank. It would appear that the weld seam failed. What are my options? I'm leaning toward taking that tank out of service. How could I isolate it and what would be the best method to empty it and flush it out to eliminate the smell of fumes? Should I just isolate it and fill it with soapy water?