Water Heater Bypass Valve
Anyone change the water heater bypass valve. I blew out the lines with air, then thought I closed the valve and began to pump the pink antifreeze. It did not bypass, began to fill the hot water tank...
Forum Discussion
bguy wrote:
To by-pass the tank you must operate 3 valves. You must close the cold inlet valve, close the hot outlet valve and open the by-pass valve. Unless the handle came off in your hand I doubt the valve is broken.
Some rigs, like mine, have a 1 valve bypass system. The bypass valve closes the cold water line to the water heater and shunts the cold water into the hot water lines, and a check valve on the water heater prevents backfilling the tank.
Some rigs have a 2 valve bypass system. There is a bypass valve which closes the cold water line to the water heater and shunts the cold water to a line going to a bypass valve on the hot water line. The bypass valve on the hot water line closes the line from the water heater and allows the cold water from the cold line to enter the hot water lines.
Some rigs have a 3 valve bypass system. There is a shutoff valve on the cold water line to the water heater. There is a shutoff valve on the hot water line from the water heater. There is a line connecting the hot and cold lines with a shutoff valve that must be opened to allow the cold water to enter the hot water lines.
