Under Pressure

Discussion in 'Plumbers' Talk' started by bathroom boy, Mar 13, 2010.

  1. bathroom boy

    bathroom boy New Member

    Converted my ch to sealed system 2 years ago and has been fine but just recently, It is losing pressure on a weekly basis, pressure relief is sound, I can't see any visible sign of a leak anywhere, any obvious things to check? Thanks.
  2. Dick Puller

    Dick Puller New Member

    Check your expansion vessel & any auto air valves. Another usual suspect is micro-leaks at the rad valves, there can be leaks at them & it just evaporates.
  3. imran_

    imran_ New Member

    And of course leaks where you can't see them!!
  4. bathroom boy

    bathroom boy New Member

    Thanks Lads, went over it again today,aav which I had allready checked was passing as the pressure built up with the temp,sorted.cheers

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