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Main Steam Vent

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Aveeight
Aveeight Member Posts: 29
in Strictly Steam
How long should this stay on for when every radiator is hot and the individual steam vents on them have shut down? I think this relates to my boiler gauge not moving that much and a potentially clogged pigtail - but right now when the system runs for 30-45 minutes the main vent starts whistling a little and doesn't seem to stop. I think unclogging the pigtail might fix the fact that the pressuretrol might not be shutting off the system. Does that make sense?

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  • nicholas bonham-carter
    nicholas bonham-carter Member Posts: 8,578
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    whistling vent

    yes, clean the pigtail, and get a good low pressure gauge [gaugestore.com 0-3 psi], so you really know what the pressure is. otherwise, it is like saying to the speed cop,   "i only had my right foot a quarter way pressed down....."!--nbc
  • World Plumber
    World Plumber Member Posts: 389
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    Pigtail / vent

    Get the pigtail checked and the pressuretrol working correctly. Should be set to it's lowest setting. Too much pressure can break the vents. It (the vent) should close when steam hits it. If it's whistling you have too much pressure either the pigtail and pressuretrol or not enough venting or both.
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