Quote:
Originally Posted by villagetinker
Because the water meter has a valve that blocks reverse flow, so when the water heater heats up the water, it expands and the pressure in the house plumbing goes up, to the point where damage could occur. The expansion tank provides a cushion of air so the pressure spikes are much lower, and as previously noted these are required by code.
On a side note, expansion tanks last 5 to 7 years, and the simple test is to tap on the tank, below the weld line it should be dull sound, above the weld line it should be more like a bell.
|
This is a notably different sound. If you aren't sure there is a difference then there probably isn't and the tank is probably bad.
(I spent a few weeks with a bad tank because I was convincing myself I heard a different sound. Once the problem was resolved and the tank was working properly, the difference in sound was very clear)
__________________
Why do people insist on making claims without looking them up first, do they really think no one will check? Proof by emphatic assertion rarely works.
Confirmation bias is real; I can find any number of articles that say so.
Victor, NY - Randallstown, MD - Yakima, WA - Stevensville, MD - Village of Hillsborough
|