Speaking of backflows the site I reported on not having a backflow device (although the system is only three years old) has encountered problems. One of the isolation gate valves has split and a steady stream of water is coming out making a big muddy mess. Of course there's no way to shut it down and make repairs without shutting down the domestic supply which will also kill the cafeteria. They're trying to figure out now when we'll be able to do the repairs and hoping that the situation doesn't get worse forcing an untimely shut-down. At least now I understand that people above our department (including the section director and the Risk Manager) are aware of the situation. The big question being asked by them: "How did this happen?"