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  1. M

    Hot water noise, tapping / knocking

    No pipework has been altered. We replaced the ballcock on the cold water tank over the weekend too and while the pipework is next to it in the loft space, nothing has changed there. Bathroom refit also carried out the week prior but again, no changes to pipework related to hot water system and...
  2. M

    Hot water noise, tapping / knocking

    We have a conventional boiler system, small tank in the loft, hot water cylinder in upstairs cupboard with pump and Y port valve and boiler downstairs. Earlier this year had new timer / control unit fitted, new Y port valve, new pump and new hot water thermostat. Since the beginning of this...
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