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  1. S

    problem bleeding a unvented system

    yes... :cry:
  2. S

    problem bleeding a unvented system

    Should have said, the unions are just blanked off..
  3. S

    problem bleeding a unvented system

    There are two union type joints in the loft sapce which look like they were put in in case the system was to be expanded but they aren't bleed valves at all - I can't get air out of them either, just water...!
  4. S

    problem bleeding a unvented system

    Can anyone help? I've just replaced TRV's on all the radiators (5) in a top floor flat but can't get two of them to get hot. The problem, I'm very sure, is down to an air lock, the two rads are furthest from the boiler and are connected by pipework which goes up through the loft space and...
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