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One Pipe Steam System Flooding
Hello again! Maybe you remember my epic thread regarding a new Peerless steam boiler installed in September. We have been going along pretty well here, just about to get our Tekmar Controls installed, but some problems still keep cropping up. We had a few incidents where there was water coming out of our new Gorton main vents in the garage accompanied by more radiator noise. Our plumber (who I have had to guide using all the good advice I get from this website) addressed this "flooding" problem by draining/blowing down the boiler. Things were okay for a few weeks. We then started getting increased radiator noise and yesterday radiators on one riser are not heating up beyond just lukewarm even though they are still noisy...
Noise can range from standard steam hammer clanging to that sort of low roiling/rumbling sound like the boiler is surging again (dirty water?).
Where do you suggest I begin with this? Skim the boiler again? See if the auto-feed / minimum water level is the culprit?
Do you think since the system has "flooded" at least 2x in the past 5 months, that we need to flush the risers/return pipes since they could be full of crud now?