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Will a thermal expansion tank also work on the outgoing hot water line from the water heater?
Dec 24, 2014
2 Replies
Yep and an increasing number of localities are even requiring them. Even vacuum breaker valve's for when a fire department uses a hydrant are starting to be required. I've never had either and never needed them, even remotely, under any circumstance.
Slight correction. The expansion tank should go on the cold or water supply side, not on the hot side.
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