Replacing waste pipes

[Barisk]

I needed to change waste pipes because they were just crumbling into pieces, but i am not sure how can I connect the new pipe to the one inside the wall. Many thanks

 

[fowlerboi]

I would get a core bit for the size of pipe needed and spin it around it carefully enough that the new fitting can be sunk onto it.

Obviously the best option is replace it from inside but I gather you can't do that if you're asking this question?

 

[Barisk]

I would get a core bit for the size of pipe needed and spin it around it carefully enough that the new fitting can be sunk onto it.

Obviously the best option is replace it from inside but I gather you can't do that if you're asking this question?

Thank you for replying, it’s behind the kitchen cabinet so I don’t think i can reach there to change it from inside, I’ll keep that method in mind . It’s quite clever