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Heating/boiler pressure issue - liquid sealers any use?

  • 08-03-2015 8:45pm
    #1
    sarkozy
    Registered Users, Registered Users 2 Posts: 1,476 ✭✭✭


    It appears that our heating system loop (combi boiler) is losing pressure. It's newly installed, and the plumber fixed a weeping joint, which is now sealed. He refilled the system 3 weeks ago, but the pressure has dropped to below one bar.

    Since there is no evidence of a leak coming from upstairs, it's possible the leak is downstairs.

    Is there any way to fix this without ripping up the expensive floors under which the piping is located? Could a liquid sealer like Sentinel be used to seal up this small leak?


Comments

  • #2
    Dtp1979
    Registered Users, Registered Users 2 Posts: 12,870 ✭✭✭✭Dtp1979


    sarkozy wrote: »
    It appears that our heating system loop (combi boiler) is losing pressure. It's newly installed, and the plumber fixed a weeping joint, which is now sealed. He refilled the system 3 weeks ago, but the pressure has dropped to below one bar.

    Since there is no evidence of a leak coming from upstairs, it's possible the leak is downstairs.

    Is there any way to fix this without ripping up the expensive floors under which the piping is located? Could a liquid sealer like Sentinel be used to seal up this small leak?

    Possibly but ideally find the leak. Take the caps off all radiator valves and see is it wet underneath. Check when the system is both hot and cold.


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