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Discuss Is our Air admittance valve faulty? in the Valves & Taps area at UKPlumbersForums.co.uk.

  1. Simonique

    Simonique New Member

    Hi all, my brothers durgo valve make a terrible noise when you flush downstairs loo. Also abit of a smell coming from the downstairs loo also.
  2. rpm

    rpm Trusted Plumber Top Contributor!!

    Welcome to the forum, depending on age it might need cleaning however easy enough and cheap enough to change.