fourth year
It is not guaranteed that you will have a problem with it, but you will be gambling. I just fixed a third leak in a house built in 01/1989. They are just going to get in under the 12 year deadline, although they have until 2002 to file the claim. They did not have any leaks until recently. My experience has been that once the leaks begin, then they continue to occur periodically until it is changed. I would not buy it without some provision for replacement or credit towards the replacement. If it is the PB system with the Monoblock valve manifold, then that is a different system and I have seen few problems with the piping.
