OK this is a long shot but before we shell out on an expensive lawyer, thought it was worth a try. Our house was built in 1710 and we bought it in 1998 from the NHS who had owned it and run it as a clinic for over a century. It has recently transpired that the drainage from our kitchen flows directly into the rainwater gully outside our house. This obviously is not the way drainage is supposed to work as it should be connected to the sewerage. The drainage system is well over a hundred years old and our builders didn't alter it but just connected up the sinks etc to the existing network, asssuming that as it had been in place for more than a hundred years, the sewerage system was as it should be. There was previously a sink where our kitchen sink now is.
The problem is that the drains frequently get backed up and start to smell and we are virtually certain that to have kitchen drainage going straight into a rainwater gully is illegal. The problem is that to fixing the situation would involve digging up our entire kitchen floor (limestone and the concrete underneath) and effectively destroying the kitchen. It would obviously be horrendously expensive.
So my question is who is legally responsible for the problem? Is it us as current owners of the house or is it the NHS who owned the house previously and who were responsible for setting up the drainage?
Any thoughts/pointers appreciated.