The part is a thermal expansion tank. It costs between $30 and $55 at any plumbing supply house. When it's missing from a ...
The Cool Down on MSN
A 40-gallon water heater dripped multiple times a day, and commenters blamed pressure buildup
If the issue is ignored, homeowners could end up facing a larger repair bill than expected.
The Cool Down on MSN
Homeowner's water heater won't stop whistling after repair, fears grow over trapped pressure
"Shut that ... thing down before it explodes and get outta there." ...
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