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PIPES KNOCKING

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GREENMAN
GREENMAN Member Posts: 25
in THE MAIN WALL
WHAT WOULD CAUSE THE PIPES ON A HOT WATER BOILER TO KNOCK.

WE CHANGE THE EXPANSION TANK AND BLED THE BOILER AND IT WORK FOR ABOUT 3 WEEKS BUT IS HAPPENING AGAIN

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  • kcopp
    kcopp Member Posts: 4,630
    it could be....

    a number of things. Too high a water temp., too little pressure, air in the lines, improper piping or expansion noise from the pipes rubbing up along the wood....kpc
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