Cast Iron Soil Stack help

[pte440]

Hi All,
Advice please, if you may.

I want to change the toilet pan in my bathroom, I suppose it is the usual arrangement, low level pan, into about 1mtr of cast iron pipe, then into a T piece, into the soil stack in the corner.

I would like to change the pan and cistern for just a new standard low level pan etc. I would like to remove the 1mtr of cast iron pipe and replace with plastic.

What would you do? try and remove this pipe from the T piece and replace with plastic (cement into stack)? or I have seen that another train of thought is to cut the cast iron pipe as near as I can to the stack, pop in a multikwick, then plastic pipe to my pan.

I over think all of these things.. sorry !

Most of the pipe is boxed in so, not too fussed about "looking nice" just want to try and do a good job.

Any advice is always welcome.

Thanks all and keep safe
Peter
x

 

[CBW]

Hello Peter,

Any reason for renewing just a metre? Wouldn’t use just a multikwik, then plastic. You could do the following: an extension multikwik and pan connector multikwik, or if you want rigid and plastic, then a McAlpine dc1-bl (drain connector) if your opening is 4”, a short piece of pvc (think smallest is 2m length) then pan connector.

HTH.

 

[pte440]

Hi Chris,
thank you for your reply.
What I have is about 1mtr of cast iron pipe from the back of the pan, and then into a T piece that goes into the vertical stack.
I was hoping to replace the pipe from the back of the pan to the stack and the cast iron pipe will firstly need a bit of a "tweak", currently about 2cm too high for new pan, and also the cast iron looks a bit industrial and messy.

Peter

 

[JimCrow]

Cut the cast as near to the branch as you can and use of of these,

 

[oldbutnotdead]

Cut the cast as near to the branch as you can and use of of these,


View attachment 191125

That. Don't mess with the stack pipe, T etc unless you're planning to replace it all.