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Discuss Slight drip brown water from nut / bleed valve area? in the Central Heating Forum area at

  1. Ian Prior

    Ian Prior New Member

    Hi, we have 2 rads. where there is slight rusting visible around the silver nut around the bleed nipple. water is coming out but evaporates to leave a brown stain. Can I tighten nut...or will this need replacing? Do I need our usual plumber..or diy? thanks.
  2. TamzJnr

    TamzJnr New Member

    Get your usual plumber in. It should be a simple enough job for him/her.
  3. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Sounds like the o ring has failed easy enough to do diy

    Turn both rad valves off

    Get a container and bleed rad until it stops

    Take a plug out with a old towel below to catch any drips

    Either replace the o ring or add some ptfe to the threads

    Tighten the plug back in

    And do the same for the air bleed

    Close bleed screw if you haven't already done

    Open both valves

    Bleed rad

    Check for leaks
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