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Posted by HeatPro on April 07, 2007 at 18:24:56:
In Reply to: Weil-Maclain gas boiler posted by Don Bedard on April 07, 2007 at 14:01:52:
You need service to be done by a knowledgeable heating tech. Then both problems will cease.
http://www.heatpro.us/designtree/
Expansion tank