Checking for Leaks
What is the recommended method for testing 3/8 copper oil feed lines for an
oil furnace for leaks? Pressure or vacuum? Is there a life expectancy for
copper that is buried in the ground or possibly in concrete? These lines run
under the concrete basement floor, so before I replace them I want to test
them. They are about 50 years old and have been working as far as I know.
Thanks
R
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