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Old 11-05-2011, 02:53 PM   #1
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expansion tank for water heater


uhmmm... where do i put the expansion tank for my water heater, cold inlet pipe or hot pipe out?

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Old 11-06-2011, 08:17 AM   #2
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expansion tank for water heater


Anywhere in the cold water supply, even back where the main enters the house. I assume your relief valve on the Water Heater is weeping. Just get a small 2 gallon x tank and tee it into the cold water anywhere that's convenient for you.

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Old 11-06-2011, 08:37 AM   #3
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expansion tank for water heater


Preferably right at the heater:
1. There should be no valve between the expansion tank and the water heater.
2. So someone looking at the water heater can easily see that "it has" an expansion tank.
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Old 11-06-2011, 09:04 AM   #4
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expansion tank for water heater


Not necessary right at the heater. Put it where it's convenient to you to get at. Yes no valves between it and the water heater that would defeat the purpose of the x tank.
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