OK, so I came home from work today to find my water running in all faucets, no flood on the floor, and my gry and blk tanks were able to drain. I had poured antifreeze down all sinks, down the toilet, and down the frozen sewer pipe yesterday. Everything was still frozen this morning, and when I came home it was like the last 2 days never happened. Wow! The day was no warmer than 30 degrees, overcast, and snowing. The only think I can think of is that the antifreeze worked miraculously. My dog and I skipped and played for joy on our afternoon walk together. Thanks for your help folks, another happy ending to an Airstream Saga. Namaste.