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Water hammer - just started.

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jturk1000
jturk1000 Member Posts: 6
in Strictly Steam
Out of nowhere, many of my steam radiators are banging loudly when the heat is on. I've owned the home for 5 years, and we get some of that in our kitchen, but yesterday nearly all rooms do it. What could have happened so suddenly? It's not THAT cold outside...

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  • Fred
    Fred Member Posts: 8,542
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    Has anything changed since yesterday? Are the radiators pitched in the right direction? Is this a one pipe or two pipe system? If two pipe is there a trap that may have failed? Are there any kids that may have been swinging on the ,mains in the basement or a hanger that may have pulled loose somewhere along the mains allowing the main to drop in the wrong direction?
  • nicholas bonham-carter
    nicholas bonham-carter Member Posts: 8,576
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    It may be time to check the pigtail under the pressuretrol for blockage. This will allow the pressure to race up beyond the set limit, and do some loud things.--NBC

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