Main vent making loud noises

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QuintonS
QuintonS Posts: 51
in Strictly Steam

My Big Mouth main vent is making a very loud noise every so often. Sounds almost like a grinding noise. Can hear it all the way on the 2nd floor even though the main vent is in the basement. Is this normal?

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  • 109A_5
    109A_5 Posts: 4,761

    I would say that is not normal, my Big Mouth is petty quiet last I checked it. Maybe the 'O' ring needs replacing.

    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
    QuintonSBig Ed_4
  • neilc
    neilc Posts: 3,213

    I'm gonna guess it's not the bigmouth, but the main dragging itself across a support or hanger somewhere as the main expands, or contracts, find the binding spot and slip in a piece of milk carton plastic to allow for a slipp

    known to beat dead horses
    mattmia2

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