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Posted by HeatPro on October 05, 2009 at 10:31:35:
In Reply to: Re: Sludge in sight glass and in valve below posted by Jeff on October 04, 2009 at 15:35:07:
Attending to make sure insulation is good on the pipes and testing and adjusting the burner for efficiency helps. Many low water cutoffs call for blowdown weekly to prevent accumulating enough sludge to clog holes.
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