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losing pressure with towel rails and under floor heating

Discussion in 'Plumbing and Central Heating' started by john cushnie, 9 Jan 2021.

  1. john cushnie

    john cushnie

    8 Sep 2019
    Thanks Received:
    United Kingdom
    For a number of weeks I've been topping up the pressure on a Grant Vortex oil boiler running John Guest underfloor heating and a couple of towel rails, I've a few questions as I'm not sure how the system works.
    I've rang a couple of heating engineers who have not turned up.
    Will the under floor heating be on the same circuit as the towel rails? When the pressure drops the top of the rads are cool.
    On the manifold the 2nd from right flow meter there is water dripping from it there seems a crack in the plastic, a few weeks ago I turned it slightly which I thought stopped it leaking , I've realised since that circuit is not working and it is leaking again.
    If I can't get an engineer to replace the leaking flow meter is it a job I could do myself?
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  3. cross thread

    cross thread

    8 Sep 2005
    Thanks Received:
    worlds end
    United Kingdom
    Start with the basics have the leak repaired and have the expansion vessel recharged
  4. DIYnot Local

    DIYnot Local

    3 Sep 2019
    United Kingdom

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