A friend once told me she thought u/w photographers might make good partner-marriage material. "After all", she said, ripping off the wonderful line from Joan Rivers, "you're already used to spending money on neat non-essentials, you exhibit patience and a willingness to delay gratification, and you've experienced lots of pain."   As many here already know, I experienced the pain of my second flood in a lifetime a few weeks ago. The problem was the o-ring on a 50 mm port extension ring, whi