In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
I recently took over a 3 story building that is currently heated by a hot water boiler with one pump. The mains run down the first floor hallway ceiling and takeoff for all floors. The complaint is banging pipes which I observed firsthand the copper fin baseboard shaking and banging. Over the last year about 20 of the 30 units have installed new fast closing zone valves. The noise is worse at the far end of the hallway. Could a end of the line bypass eliminate this problem. It seems as the majority of the zonevalves are closed the last ones to do so cause the banging. Any thoughts would be appreciated.