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Heating system pressure q’s

  • 14-11-2017 1:17pm
    #1
    MummyBT
    Banned (with Prison Access) Posts: 3 ✭


    Hi all, I’ve just written a detailed post which disappeared on me so here are the three things I was asking and I can explain further details if needed:

    1) what would cause a rad (probably last in the circuit) to only heat when all others are shut off? It’s the only one with a fully open lockshield.

    2) other than a leak, what would cause the boiler (installed 5 months ago) to lose pressure from 1.5bar to 0.5 overnight?

    If it is a leak, is it likely that it is located between this rad and the one before it in the circuit (so water escapes before reaching the last rad but when all others are shut off there is enough pressure to push beyond the leak?) or am I talking rubbish?

    3) should there be a constant gurgling sound up in the attic which stops when the filling loop is opened (also located in attic)?

    Thank you! Hopeful for a solution that doesn’t cost the earth or my sanity!


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