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12-19-2016, 03:13 PM
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Join Date: Nov 2010
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Quote:
Originally Posted by photo1902
What we have on our hot water heaters down here is called a Themal Expansion Tank. I've yet to see anywhere, trade publications, code, etc., where they are called compression tanks. Another problem which is common, is that the tanks are not filled with the correct pressure. The pressure should match the water pressure in your house. A recent check of mine revealed it was at 20psi, which is too low. The expansion tanks come set from the factory, but are frequently not checked for correct pressure when the plumbers install them.
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Yep that's what the plumber from Mike Scott termed it
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