Thanks for all the comments, this helps me a lot. I just wanted to test out a few more questions. I decided to further inspect the chamber last night and observe the flow whilst flushing toilets and running taps etc, as without asking the buyers surveyor (which may be our next step), we remain...
We are in the process of selling our house. We seem to be somewhat challenged by the buyer who is asking countless questions we were not expecting and / or appear trivial - minor. Their survey report reported that the external inspection chamber showed a minor build up of waste. We challenged...