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Plumbing Vent Hissing

  • 07-11-2017 10:25am
    #1
    magnethead
    Registered Users, Registered Users 2 Posts: 430 ✭✭


    Ok, I know technical people need details so I'll try to provide as much as a I can.
    All the radiators in the apartment have filled with air (That's about 10 Rads)..hell of a lot of air.
    This has happened twice in the last year after a new Boiler was installed.




    THe setup is weird, It looks like a closed system with an expansion tank, but it's not really, I think, because the feed is just straight from the attic water tank

    filltube.jpg?raw=1

    Here's the Attic water tank

    watertank.jpg?raw=1


    I eventually figured out, that I needed to open the white fill tube, and the water rushed in to fill the massive amount of air filled space in the Rads.

    So I know, what you're thinking, there must be a leak somewhere on the system for it to be sucking in that much air? But there is no obvious leakage anywhere :(

    The boiler replacement was a rush job, and he was soldering on wet pipe :(
    How would I figure out, if a solder joint was bad, even though there is no sign any of them are leaking.


    Thanks for any advise


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