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Posted by Dave on May 23, 2006 at 22:21:43:
In Reply to: Re: copper tube boiler groaning/vibrating posted by HeatPro on May 23, 2006 at 21:13:39:
I have the exp tank pressure set at 18 and the operating pressure at 25 but the noise seems to be starting again...definitely quieter, but it seems to be recurring.
What is the best way to purge air from hx? We have a draincock on the outlet pipe and one at the base of the Ergomax.
How do we then stop the antifreeze from foaming and the problem from recurring?
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