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Posted by Dave on May 23, 2006 at 19:23:15:
In Reply to: Re: copper tube boiler groaning/vibrating posted by Dave on May 23, 2006 at 18:28:08:
: The 0010 pump is pumping into the inlet of the boiler (abouta foot from the inlet)
Well, my neighbor the plumber stopped by tonight and ran some water through the boiler and out the boiler drain because he thought there might be some air that had been trapped in the heat exchanger when the pressure was low.
The noise stopped immediately. I don't understand how air could possibly get in the heat exchanger 4 months after the repiping. He also recommended leaving the autofill valve open so if the pressure transiently drops, it would replenish the water. He says that we would notice any type of leak that would be substantial enough to dilute oue 40 or so gallons of antifreeze.
I just don't understand how air could possibly get in the heat exchanger 4 months after the repiping.