Once again, chit happened.....was just leaving town when I get a call from the wife's caretaker - all toilets are clogged....<sigh> Three houses have had sewer main breaks in the past month on our street, so fearing the worst, I make a u-turn, calling a plumber I trust as I do. He made it out about one, snaked the line - while we're still not sure just WHAT was clogging it (no debris on the snake's spring when he retracted), it cleared out and is running like a champ again.