The plumber arrived at 6pm, right on schedule. I really like him. He's cute, quick, and doesn't make much conversation. His name is Boris Kats and works for Bay Area Plumbing. He got the broken copper piping fix and connected to the refrigerator's icemaker. He also showed me the correct knob for the dishwasher. All is working. Steve showed him the area in the bathroom where the leak occurred the other day from the upstairs neighbor's washing machine. Looks like that will be a lot of work, saved for another day at my landlord's expense. I'm happy to have a good plumber, a good doctor, and a good dentist! Now I just need a good electrician and a good housekeeper. Anyone you can refer?