Quote:
Originally Posted by Bill14564
If the expansion tank was working with the old heater it will work just as well with the new heater. if it was installed properly with the old heater then it will still be installed properly with the new heater.
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I don't dispute that, in the least. But we're assuming the expansion tank has not failed and that the homeowner has tested the water pressure for the home (and made sure the existing tank matches that pressure). Given the fact a new expansion tank is $50, just install a new one (and a more robust method of supporting it)