1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Fixing a drip from Vaillant unvented hot water cylinder cold inlet

Discussion in 'Plumbing and Central Heating' started by lfnfan, 17 Jan 2021.

  1. lfnfan

    lfnfan

    Joined:
    29 Jul 2009
    Messages:
    49
    Thanks Received:
    0
    Location:
    London
    Country:
    United Kingdom
    Hi All

    Would a fix for this be something an amateur DIYer could do?

    Drip drip drip from the cold water inlet 'overflow' - where the cup is hanging in the picture (see red arrow, bottom half of pic). The cup 250cc fills up about once a week at the moment.

    hot water tank.jpg
    Happy to provide better pictures if helpful.

    If DIY-able, what part am I looking for / how can I tell?

    Many thanks in advance for help and advice!
     
  2. rbranco

    rbranco

    Joined:
    27 Jan 2018
    Messages:
    182
    Thanks Received:
    23
    Country:
    United Kingdom
    It's a sealed system, personally ide either isolate if you can else drain it down.
    If you get another exact valve you may be able to replace the rubber seal inside the valve, that is what I did with mine.
     
  3. Sponsored Links
  4. denso13

    denso13

    Joined:
    22 Jan 2007
    Messages:
    5,454
    Thanks Received:
    1,105
    Country:
    United Kingdom
    Try tightening the square end on the right hand side, it may just need nipped up.
     
  5. lfnfan

    lfnfan

    Joined:
    29 Jul 2009
    Messages:
    49
    Thanks Received:
    0
    Location:
    London
    Country:
    United Kingdom
    Hi
    Just to let you know that I tightened that square end. Was very hard to turn - even just a tiny bit.
    That seems to have done the trick - been 10 days and not a drip :)
    Many thanks!
     
  6. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
  7. Sponsored Links
Loading...

Share This Page