To introduce myself, my name is Bill, and have just posted & read some wonderful replies about a current plumbing problem/disaster we have in our home. Friendly, helpful people are few & far between, internet-or-otherwise, and everyone on this forum so far has been extremely helpful and insightful. Like a lot of folks, I know a little about many things, a lot about a few things, but not enough about plumbing, so please be patient with me and other folks who are trying to solve puzzles &/or avoid huge repair bills involving this forum's multiple subjects. Many forums have frustrated members who hate repeat questions, and I hope not to be guilty of asking those duplicate questions, or flaming when reading them, but hopefully someday soon I can "pass it on" and help someone by sharing my limited experience and/or knowledge. Happy 2013 to all!!!