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

Leaking galvanised steel water tank in loft

Discussion in 'Plumbing and Central Heating' started by subspace, 21 Feb 2020.

  1. subspace

    subspace

    Joined:
    14 Feb 2013
    Messages:
    7
    Thanks Received:
    0
    Country:
    United Kingdom
    Hi, I have a galvanised steel water tank in the loft which has developed a pinhole leak in the base due to rust. The leak is very slight, it hasn't even created a damp patch on the ceiling. I put a coffee cup beneath it and it takes about a week to fill it up.

    I could have it replaced but I have an old fashioned back boiler which sooner or later is going to break down and be replaced with a combi. I heard that when they fit combi boilers they connect all of the cold water pipes to the mains, in which case this tank will not be needed. Is this true?

    I have two tanks in my loft, this steel tank which I understand is a feed tank for the boiler and upstairs plumbing, and a plastic tank which I think is an expansion tank for the hot water cylinder.

    Is there anything I can use to patch up the tank to stop the leak? I was thinking about some sort of epoxy applied to the exterior of the tank?
     
  2. Sponsored Links
  3. ReJect

    ReJect

    Joined:
    19 Oct 2019
    Messages:
    310
    Thanks Received:
    60
    Country:
    United Kingdom
    Do not touch the tank or attempt repairs!!! The rust inside is actually holding it from leaking.
    Don’t even bump into the tank.
    I have moved drained metal tanks and they leak the remaining dregs often when I touch them. Had a customer once noticed rust on side of his cold water tank and poked it with his finger which went through the tank, flooding house below.
    It will be disconnected if you get a combi boiler (almost always).
    But if that is going to be more than a few weeks away personally I would have that tank replaced.
    A new tank just doing basics as a short/long term solution wouldn’t cost much tbh. Materials are not expensive and you only need bare minimum to last a while
     
    Last edited: 21 Feb 2020
    • Like Like x 3
    • Thanks Thanks x 1
  4. Terrywookfit

    Terrywookfit

    Joined:
    19 Jul 2007
    Messages:
    5,649
    Thanks Received:
    1,063
    Country:
    United Kingdom
    As previous post.
    The zinc coating could be all that is preventing a flood
     
    • Like Like x 1
  5. BoilerBob

    BoilerBob

    Joined:
    21 Feb 2020
    Messages:
    152
    Thanks Received:
    35
    Country:
    United Kingdom
    Whooooo my dad touched one being nosey I’d told him I’d fix it at the weekend turned out big claim silly buzzer. Bob
     
    • Like Like x 1
  6. Mottie

    Mottie

    Joined:
    27 Feb 2017
    Messages:
    13,839
    Thanks Received:
    1,601
    Location:
    Essexshire
    Country:
    United Kingdom
    I’ve used a product before to repair pinholes fuel tanks on cars. Google 'petro patch'.
     
  7. Sponsored Links
  8. lostinthelight

    lostinthelight

    Joined:
    11 Feb 2016
    Messages:
    2,676
    Thanks Received:
    511
    Location:
    monmouthshire
    Country:
    United Kingdom
    A rigid patch stuck under with CT1 and wedged up with not too much pressure may hold it for now ,that's if you can get under it without disturbing
     
  9. HERTS P&D

    HERTS P&D

    Joined:
    9 Apr 2010
    Messages:
    11,948
    Thanks Received:
    1,821
    Location:
    Hertfordshire
    Country:
    United Kingdom
    Either replace the CWST or fit a new Combi now......................your house........................................You decide!!!

    Andy
     
    • Like Like x 1
  10. ianmcd

    ianmcd

    Joined:
    15 Aug 2010
    Messages:
    20,552
    Thanks Received:
    7,994
    Location:
    Lanarkshire
    Country:
    United Kingdom
    Do not attempt any kind of repair, either get a combi fitted and existing Tanks will now be redundant, or have a new cistern fitted, if you go near your leaking Galv tank you will totally regret it
     
    • Like Like x 1
  11. subspace

    subspace

    Joined:
    14 Feb 2013
    Messages:
    7
    Thanks Received:
    0
    Country:
    United Kingdom
    Ok thanks for the advice I think I'll get it replaced. James.
     
  12. KenGMac

    KenGMac

    Joined:
    24 Aug 2010
    Messages:
    3,563
    Thanks Received:
    678
    Location:
    Ayrshire
    Country:
    United Kingdom
    Best call possible under the circumstances
     
  13. 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