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Posted by Harold hydronicnetwork.net on December 26, 2003 at 09:21:44:
In Reply to: gurgling pipes posted by Eric S. on December 26, 2003 at 04:07:43:
Boiler systems set up with the circulator(s) pumping into the boiler return with the expansion tank on the boiler or supply line are more or less subject to this problem, depending upon the system, and circulator wear. The Spirovent might have been added to prevent some of the problem. Unfortunately, the noises can persist until relocating components.
Some of the explanation can help at:
A cure can be by relocating components to produce:
Compare the way your system is piped to:
The concept is called "Pumping Away."
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