Swimming Pools and Building Surveys

I know someone who bought a property after a building survey, and after moving in found that the swimming pool was breaking up and starting to slide down hill. Nothing in the survey report about that, except the small print saying the survey covered only the building, not other features like the swimming pool or sheds. The problem was pretty obvious when you inspected the pool, but the buyer hadn't bothered to do that because he assumed that problems would be listed in the building report. Buyer Beware!