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Discuss Loss of boiler pressure in the New Member Introductions area at UKPlumbersForums.co.uk.

  1. Jamie Schofield

    Jamie Schofield New Member

    Hi guys I recently had a 2 leaks under my concrete floor which I fixed but I'm still loosing pressure. I've bleed all the radiators and close all the pipes off on the boiler and and tested it and it's fine. Any ideas?
     
  2. Coby kenny AGUILAR

    Coby kenny AGUILAR Member

    What system have you got? Is it old or new?

    If there's an expansion vessel that's where'd I'd check first and check the pressure,

    I would then check pipework around boiler filters, controls

    I would then inspect every rad valve and air pins with a bit of blue roll removing caps trvs ect...

    I would then turn off the boiler wait 10 minutes and check the condense, the white pipe there should be no water running here, if there is you need to phone a gas engineer and prepare for bad news

    If all above is okay, hire out a thermal imaging camera, run the heating on max and check all Pipework in wall and floors, leaks tend to show up like filling a basing slowly, don't dig up loads of holes until you've inspected the whole house, if you're problem persists then your really unlucky lol
     
  3. Stigster

    Stigster Plumber

    First and easiest place to check for water loss is at the discharge pipe on the pressure relief valve. Take a look there and see if water is coming from there. If you can't see any or can't just hang about looking at it, cut the finger off a disposable glove and attach it to the end of the discharge pipe for a day or two and see if it collects water. A plastic sandwich bag or similar will also work without being dangerous and blocking off the safety pipe. The problem may well not be there but at least you can easily eliminate it.
     
    • Like Like x 1
  4. Jamie Schofield

    Jamie Schofield New Member

     
  5. Jamie Schofield

    Jamie Schofield New Member

    It's a BAXI combi boiler it's was in when I bought the house a couple of years ago but I'm sure it was fitted on to a old system so all the pipe work will be old. I changed all the radiators when I moved in
     
  6. Jamie Schofield

    Jamie Schofield New Member

    It's a BAXI combi boiler it's was in when I bought the house a couple of years ago but I'm sure it was fitted on to a old system so all the pipe work will be old. I changed all the radiators when I moved in
     
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