Plumbing 101

As you know Ben is the main cook and bottle washer. He was doing his duty yesterday when some colourful language was heard . There he was fawcet in hand, he had swing it between sinks when it let go- literally. Lucky for him the screw was still in place, you have no idea how finicky these things are, if not exactly aligned they won't spit water, and of course the screw is hidden in the back with a bout 1" clearance from the wall. His wife had bought an itsy screwdriver ( no not because it was cute looking) and I had a mirror to add to the collection, Just the right equipment for the job if one could see,

Luckily it did not need to be replaced only tightened up but what next.......