Thank you Chris and Whale for your responses. The common property water mains connection is situated in a laundry cupboard inside the lot. When the connection leaked, it badly damaged the cupboard. My query concerned property within the lot being damaged as a consequence of a faulty common property tap connection. From reading the posts on the Forum it appeared that if property in a lot was damaged by a common property fault then the damage should be met by the OC. Is that a correct interpretaton of the posts?