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

Service valve basic question

Discussion in 'Plumbing and Central Heating' started by andytw, 14 Dec 2020.

  1. andytw

    andytw

    Joined:
    7 Feb 2012
    Messages:
    490
    Thanks Received:
    59
    Location:
    Somerset
    Country:
    United Kingdom
    Hi,

    Just wondering what is going on here. I have been sent an image from my son's house. Quite a recent build of about 5 years. Wet/leak under the cistern.
    Initial thought was leaky corroded shutoff valve, simple enough but looking closer it doesn't look right. Looks like it may have been soldered into the top of the valve unless there is a valve witha tap type connection.

    Any thoughts please.

    https://www.dropbox.com/s/v8rqe58l8blj1cu/IMG_2878.jpg?dl=0
     
  2. Sponsored Links
  3. terryplumb

    terryplumb

    Joined:
    8 May 2017
    Messages:
    6,162
    Thanks Received:
    1,278
    Country:
    United Kingdom
    It's a service valve ,and a tap extension is between it and the float valve tail.
     
    • Thanks Thanks x 1
  4. mattylad

    mattylad

    Joined:
    27 Apr 2008
    Messages:
    8,293
    Thanks Received:
    632
    Country:
    United Kingdom
    upload_2020-12-15_7-2-35.png
     
    • Thanks Thanks x 2
  5. andytw

    andytw

    Joined:
    7 Feb 2012
    Messages:
    490
    Thanks Received:
    59
    Location:
    Somerset
    Country:
    United Kingdom
    Thanks Terry, just looked to be missing a nut to me. And thanks for pointer to 'tap extension'.
    And thank you 'mattylad' for posting the image.
     
  6. Nige F

    Nige F

    Joined:
    28 Jun 2005
    Messages:
    21,206
    Thanks Received:
    1,741
    Country:
    United Kingdom
    Tap extension or female iron/copper connector ( chromed) possibly the end cut through the fibre washer on the service valve.
     
    • Thanks Thanks x 1
  7. Madrab

    Madrab

    Joined:
    4 Oct 2012
    Messages:
    8,244
    Thanks Received:
    2,356
    Location:
    East Renfrewshire
    Country:
    United Kingdom
    Could also be a integrated NRV adapter, the type used in shower hoses. Take the whole lot off and check the connections and fibre/rubber washer and what they used to seal the adapter to the fill valve tail, could be leaky PTFE tape.
     
    • Thanks Thanks x 1
    • Like Like x 1
  8. Sponsored Links
  9. andytw

    andytw

    Joined:
    7 Feb 2012
    Messages:
    490
    Thanks Received:
    59
    Location:
    Somerset
    Country:
    United Kingdom
    Thanks, whole lot will be coming off. Just wanted to be sure of what I was looking at first.
     
  10. JimCrow

    JimCrow

    Joined:
    31 Jan 2011
    Messages:
    655
    Thanks Received:
    228
    Location:
    St. Kilda
    Country:
    United Kingdom
    That does look like its been soldered, seen them fail there before.

    34_LI.jpg
     
    • Thanks Thanks x 1
  11. Madrab

    Madrab

    Joined:
    4 Oct 2012
    Messages:
    8,244
    Thanks Received:
    2,356
    Location:
    East Renfrewshire
    Country:
    United Kingdom
    Surely it's would have been so much easier to replace that rather than solder it??

    Hopefully it might just be build up as that's been leaking for a while and now it's just getting worse.
     
  12. andytw

    andytw

    Joined:
    7 Feb 2012
    Messages:
    490
    Thanks Received:
    59
    Location:
    Somerset
    Country:
    United Kingdom
    Didn't realise service valves come in different 'flavours'.
    I now have this. Which has standard olive 15mm connection at one end and 1/2" tap connector at the other.
    Looks like straight swap for the original.
    Thanks for all your help.
     

    Attached Files:

  13. terryplumb

    terryplumb

    Joined:
    8 May 2017
    Messages:
    6,162
    Thanks Received:
    1,278
    Country:
    United Kingdom
    That's pretty much what is there presently.
     
  14. 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

     
Loading...

Share This Page