#24982
Sir Humphrey
Strataguru

    I am assuming you are in NSW and I’ll let someone more familiar with things there give a more confident answer. My guess is that the lot/unit owner is responsible for anything on a branch of the pipe that only services your unit. I expect the OC is responsible for the part of the pipe that provides a service to multiple units. 

    I would suggest, regardless of the answer, that you propose that the OC resolve to put in an isolation valve for each unit at the point where responsibility passes to the unit owner, or the nearest practical point to that. The cost would come out of levies but would be less than if you all did it separately. If not everyone wants to do that, you could work out who does want it and arrange to share the cost of having one plumber’s visit to do as many as want to take part.