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hissing

phi
phi Member Posts: 2
in THE MAIN WALL
Hi. appreciate any help and thanks for the site. live on top floor of 7 story apt building. the release pipe (?) ends at my apt.VERY loud hissing sounds wake me up.there's a pipe in kitchen and one in living room. anything i can do to lessen the noise? other apts on floor don't have as loud a noise.
many thanks..and hopefull you can help me get a good nites sleep. phil

Comments

  • The Wire Nut
    The Wire Nut Member Posts: 422
    I think your best off reposting this on \"The Wall\"

    That's where these types of questions are answered...

    Alex...
    "Let me control you"

    Lost in SOHO NYC and Balmy Whites Valley PA
  • Brad White_2
    Brad White_2 Member Posts: 188
    Sounds like

    your apartment is the home of the main riser vent for your side of the building. It is necessary for the removal of air from the steam system- in other words, if it did not exist, your radiator vents would be doing all of that work and making even more noise.

    I suspect that vent is under-sized, either by physical capacity or by it being clogged in part. Think of trying to make a small straw whistle versus trying to make a larger pipe whistle, by blowing through it. Much harder on a larger pipe because the velocity is less.

    Too much velocity also may mean it is doing too much venting which should be done elsewhere. Are the mains vented down in the basement as well?

    The system also may be running at too high a pressure, another issue entirely, but I would start from the premise of under-venting.

    My $0.02. Others I am sure will have different and likely better ideas.
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