All water service supplied shall be upon the express condition that the City shall not be liable nor shall any claim be made against it for damages or injury caused by reason of the breaking of any main, branches, service pipes, apparatus, or appurtenances connected with said system or any part or portion thereof, or for any interruption of the supply by reason of the breakage of machinery, or by reason of stoppage, alterations, extensions or renewals. (Ord. 78-11, 3-6-1978)