All water supply or service pipes, when leaking or out of condition, shall be replaced or repaired by the plumber constructing the work during a period of twelve months from and after construction is completed and the work is accepted and approved by the City Inspector. After such maintenance period has expired, all replacements and repairs to supply or service pipes, or any attachment thereto, shall be made as in the case of leaks or breaks, as provided in Section 1042.31. Should any consumer fail, neglect or refuse to take steps to replace his service or supply pipe, after being notified in writing by the City Manager to do so forthwith, such service or supply pipe may be cut off at the curb cock or shut off until the service or supply pipe is satisfactorily repaired or until a new service or supply pipe is installed.