Water hammer due to zone valve closing

Discussion in 'Plumbing and Central Heating' started by u33446z, 4 Jan 2018.

  1. DP

    DP

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    If Honeywell valve bangs, change it for one that has a paddle instead of ball mechanism
     
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  3. FiremanT

    FiremanT

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    Possibly, but the pump must have been reversed.
    A pic would be useful
     
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  4. u33446z

    u33446z

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    Well, no, installed by a local experienced tradesman. But it’s not very clever, is it?
     
  5. u33446z

    u33446z

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    Installer returned today to switch round the two zone valves. Now no water hammer!
     
  6. ianmcd

    ianmcd

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    just hope that your TRVs dont start rattling now
     
  7. u33446z

    u33446z

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    System is silent!
     
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