In all cases where several consumers receive a supply of water from branch pipes, hydrants or fixtures uniting with a private common pipe inside the curb, each consumer shall keep such common pipe in repair, and in case of waste therefrom, shall be severally liable to all fines and penalties. Whenever a private pipe inside the curb which supplies water to several separate consumers through branch pipes or fixtures shall become defective so that it cannot be repaired, the owners of any such premises shall not be permitted or allowed to relay a new joint of common pipe to supply any such consumers, but each of the owners of the premises so supplied with water shall be required to make application for and lay a new service pipe leading from the stopcock at the curb to each premises so supplied with water. Only one property shall be supplied with water through one service pipe. Whenever it shall be necessary to repair or renew a private pipe within any street, the same shall be done by the city. (Code 1953, § 21.24)