Hi
I've taken down a wall of the house, 1930s plumbing no change and when digging dirt away noticed our underground soil pipe (clay) was split below the rest bend.
On further investigate the bend (90c) next to the house was split and had roots grown in it.
As it is broken am I allowed to replace the pipe with pvc 110mm and on the bend, place a inspection chamber following regulations online, without building regulations signing off on it?
Pvc to clay coupling applied after the bend to allow for the change