Since there was no one to call that night we decided to sleep on it and in the morning we called Haydocy Airstream to get some advice from our sales guy Eric Davis. He suggested we call Coach Net which is our repair service and he also knew immediately that it was the drain plug. Since it wasn't a flat tire or some other mechanical breakdown Coach Net was hesitant to send someone out so we went to an RV dealer nearby, purchased a new plug and a spare for $6.72 and tried the repair ourselves. How hard could it be?
Although my husband has many talents, plumbing isn't one of them, and after several attempts by both of us, we were fairly convinced that we didn't have the right replacement part. I called Airstream and verified that we did in fact have the right part and after several more attempts I was able to seat the plug and get it installed. We only had to borrow the right size wrench and voila we got it done. In case any of you need to know, the drain plug on an Airstream Flying Cloud requires a 15/16" socket. Can anyone tell me why they would choose such an oddball size?!?
Anyway, a happy ending and a warm shower await us, and we have a spare plug and the correct tool if anything should happen again. Problem solved!