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Old 04-25-2011, 04:09 AM   #14
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Join Date: Oct 2007
Posts: 19,911
RE: copper supply lines

Essentially is is a foot or two of dead ended pipe that will always only have air in it.

Not really , the air is absorbed by water , that's why better accumulators have diaphrams.

A complete drain will restore the air column , for a year or so.
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