I've just connected a w.c to an existing salt glazed pipe in an old property,(with the relevant building control approval)-but it looks like there is a restriction outside the property boudary,Anglian water say the drain would seem to be shared,but unadopted.Checking other threads on the forum,there is mention of the authority having to sort out shared drains if pre 1937-which this certainly is-they have been helpful so far and are sending a work unit to have a look.Any advice greatly appreciated