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Posted by HeatPro on August 28, 2005 at 20:11:15:
In Reply to: pressure valves posted by s.st on August 28, 2005 at 14:42:17:
Pressure valves can be on several pipes before or after the hand valve that feeds the boiler after services. It could be that the city water pressure rose temporarily after the town was flushing lines. More information about where and what that pressure valve was might give more information.
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