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Posted by Harold hydronicnetwork.net on February 20, 2004 at 08:58:29:
In Reply to: Boiler solder posted by Robert J. Sweeney on February 19, 2004 at 16:28:50:
First try turning the burner power off and filling the boiler above the sight glass. A leak above the water line can cause water to disappear, but water running out the bottom when completely filled can reveal a leak.
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