Had a plumber come in to replace our hot water heater this morning. I'm trying to work in the main floor office, all of a sudden I hear him yelling 'shut the water off!'. I go downstairs and find him trying to stay a flow of water from the top of the old unit (which he was disconnecting). I shut off the main and started moving boxes from the adjacent storage area and then helping with mop up. He claims he had shut off the cold water input line but that something in the house had opened a hot water valve (and it probably had - my wife had was running washing machine doing a cold load) and that was causing the water to come out. So my question is ... if the cold supply line to the old heater was really off would water still come out of the top of the heater under pressure because the washing machine opened the valve? It made quite the mess, ruined the box we store our Christmas tree in. When he yelled I had to drop off an important conference call and spend almost 45 minutes helping with clean up. Fair amount of wet carpet (dirty water) around the edges. No serious damage (since I moved things) just a big hassle. Am I out of line expecting some sort of discount?