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Old apartment radiator spitting water

Building built in 1921. A large complex. Main radiator is spitting so much water that it’s ruining my walls. Brooklyn apartment so the land lord is non responsive. All other radiators are fine. Wondering if I can fix this myself


  • JohnNYJohnNY Posts: 2,268Member
    Is the shut off valve all the way open? It should be. The radiator's got to be able to drain.
    For installations, troubleshooting, and private consulting services, find John "JohnNY" Cataneo here at :
    "72°F Mechanical, LLC"
    Or email John at [email protected]
    John is a professional Master Plumber, licensed by The Department of Buildings of The City of New York, and works extensively in NYC while consulting for clients in and out of state.
  • nicholas bonham-carternicholas bonham-carter Posts: 7,843Member
    Agree with JohnNY that the inlet valve should be completely open.
    The presence of a thermostatic vent leads me to believe that the radiator was over heating at some point, probably due to overpressure. Are the other radiators so equipped as well?—NBC
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