Picture a capital H on it's side
Code:
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The two valves on the top of the legs go into/out of the the water heater. The valve in the middle allows you two bypass the water heater.
To bypass the water heater
- both valves on the legs close (perpendicular to the line)
- valve in middle open (inline with the line)
To use the water heater
- both valves on the legs open (inline with the line)
- valve in middle closed (perpendicular to the line)