The responses are very interesting.
When the condo where I live was constructed, iron pipes were used rather than plastic. And in the first years, the condo drew its water from a well with a higher than desired salt content. Over the years, some of these pipes corroded to the point where water filtered through the ceiling and walls of the apartment below. At that point, it was considered the responsibility of the owner of the apartment served by the corroded pipes to replace those pipes. This has been the practice for years.
However, recently an owner protested this practice, claiming it was his experience in the US that the condo association was responsible. An attorney that we consider very competent was asked for his thoughts on this and he indicated that the insides of the floors and the walls are common property, as are the pipes that are located there. In otherwords, the responsibility of the condo association. The pipes above the floor or that protrude from the walls, the faucets and other fixtures, as well as the tile on the floor are the responsibility of the owner of the apartment. So that after the floor has been broken into and the pipes located there replaced, the owner of the apartment would be responsible for replacing the tiles that were broken. He further indicated that any owner who was required to pay for the repair replacement of pipes in the common areas could submit a claim to the condo association for reimbursement.
If our condo association has a problem, it appears that we will not be alone.