Awkward Soil Pipe

[sj1994]

Hi there, im refitting my bathroom and the house has cast iron soil pipe on the outside of the building but it goes from toilet through wall, into like the roof space of our porch. does a sharp left turn then joins the main stack at a t junction. I have smashed of all the cast iron its just the t junction left and the lead through the porch into the bathroom how do I remove??

 

[lame plumber]

keep on smashing, its that easy

 

[Ermintrude]

Cracking post lame! I'm shattered so off to bed.

 

[sj1994]

but how do I get the length out from the roof space? do I remove the slate tiles etc or what? because it has a 90 degree bend inside the roof space. also if I cant remove this section I will fill the holes in and re drill. is it acceptable to drill hole for the waste pipe in the spare room next to bathroom and run it through internal wall. this would go directly out to the soil pipe about 1 meter from bog. and can I join bath and sink waste behind toilet? finally what size hole do I drill for waste pipe