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Recent content by Whitcop

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    Pump Pulling Air

    Now that some milder weather has returned I have finally taken the plunge to fix the problem. I put bottle of flushing liquid in a few weeks ago and yesterday decided to alter the pipework as suggested. Drained the system down. Moved the feed from the return to after the open expansion vent...
  2. W

    Pump Pulling Air

    Thanks 45yearsagasman. Should the distance between the open vent and cold feed be more or less than 150mm? Thanks Whitcop
  3. W

    Pump Pulling Air

    No. The feed pipe is connected to the 28mm return and the vent to the 28mm flow. Whitcop
  4. W

    Pump Pulling Air

    My heating system was installed in 1981 when the bungalow was built. It consists of a wall mounted Ideal Concord WCF 255A boiler with the flow and return (28mm) going up into the loft where the pump and 3 motorised valves are fitted (I think it was called an S plan plus). This allows separate...
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