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Old 10-01-2010, 05:02 PM   #15
tummyman
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Join Date: Aug 2009
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Default Purging System

I had an old plumber show me a trick when purging the system. Use a hose from the boiler and run it into a 5 gallon pail full of water. When you open the purge valve, you will actually see all the air bubbles come out of the system bubbling up in the 5 gallon pail. When the bubbles stop, you are done. Simple but effective.
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