The City Engineer may, upon application containing such information as is required by him, issue a permit for a temporary connection to a public sewer, side sewer, drain or natural outlet. The permit may be revoked by the City Engineer at any time upon thirty days’ notice posted upon the premises and directed to the owner or occupant of the premises. In event the side sewer or drains are not disconnected at the expiration of the thirty days, the City Engineer may disconnect the same and charge the cost thereof to the owner or occupant. Such costs shall be immediately payable to the City Treasurer following a written notice of the amount thereof given to such owner or occupant or posted on the premises. A temporary permit shall be issued only upon the applicant recording with the county auditor an acceptable instrument agreeing to save the City harmless from all damage resulting to the City by reason of such temporary connection or disconnection, and exhibiting to the City Engineer the recording number thereof. (Ord. 208 § 11, 1957).