Todd, hot water by-pass valves are usually installed behind the water heater. There are probably 3 valves that need to be operated. 1. - Close the cold water valve TO the water heater. 2. - Close the hot water valve FROM the water heater. 3. - Open the by-pass valve. It's the one between the other two.
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Todd, hot water by-pass valves are usually installed behind the water heater. There are probably 3 valves that need to be operated.
1. - Close the cold water valve TO the water heater.
2. - Close the hot water valve FROM the water heater.
3. - Open the by-pass valve. It's the one between the other two.