Hi we have recently had a rear extension built and have had the inspector come round after being on holiday and he has stated we need to expose the original manhole (I dont know if this leads on to the main drain, but is the only manhole on our property).
We were obviously shocked as we have laid membrane/joists/tiles etc and this would involve ripping out our showerroom floor to expose the original manhole.
This was never brought to our attention before and throughout the inspection nothing was mentioned and we thought therefore we could simply divert the drains etc from the old building and the new drains/wastes for the new extension to a new inspection chamber connected to the old drain which we have done.
If a blockage etc occurs then the inspection chamber is easily accessible. However the inspector is still insisting on seeing the old drain. Is he right?