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

Connecting bath waste to soil pipe problem

Discussion in 'Plumbing and Central Heating' started by KGann, 13 Dec 2010.

  1. KGann

    KGann

    Joined:
    4 Jan 2007
    Messages:
    5
    Thanks Received:
    0
    Location:
    Cardiff
    Country:
    United Kingdom
    I have an old fashioned internal cast iron soil stack that is extremely inaccessible without knocking walls down. There is a pipe that comes off the soil pipe and through an internal wall into the bathroom to connect the bath waste to. I have recently replaced the bath and pipework and am having major difficulties in getting a watertight connection, consider:

    Pipe is 65mm (external) 50 mm (internal) diameter.
    Where it connects to the soil stack, it is at a slight incline so there will always be a bit of water left in the pipe sitting on the connection.

    I have tried a few plumbers merchants to see if there is a fitting to connect this pipe to 40 mm waste, as yet I have had no luck. I wondered if anyone had come across something similar and found a solution? There are more plumbers merchants to try but I am doubtful of finding anything to connect these pipes together. I have also thought about using a setting compound i.e. cement or even grout.

    I have tried using combinations of hemp, denso tape and plumbers mait. These work for a while but eventually leak. Any suggestions gratefully received.
     
  2. What about a good mastic?
     
  3. Sponsored Links
  4. Hugh Jaleak

    Hugh Jaleak

    Joined:
    3 Feb 2008
    Messages:
    6,835
    Thanks Received:
    1,568
    Location:
    Northamptonshire
    Country:
    United Kingdom
    Whats the pipe made from? Cast or lead? (Or something else...)
     
  5. KGann

    KGann

    Joined:
    4 Jan 2007
    Messages:
    5
    Thanks Received:
    0
    Location:
    Cardiff
    Country:
    United Kingdom
    I thought about a mastic. My concern is that if it doesn't work I'll end up with a right mess that will be difficult to undo.

    Difficult to be 100% sure what the pipe is made from. It's a hard material, you can shave it with a stanley but would have difficulty cutting into it. I would say its a hard plastic. As mentioned, its pretty inaccessible so difficult to get a good look at it.
     
  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