It shall be unlawful for any person, firm or corporation to engage in or conduct the business of sewer connection and house drainage; excavate any trenches for sewer pipe; open, uncover or in any manner make connection with or lay any sewer drain; or attach to, modify or repair any appurtenances without complying with the rules and regulations of the Utilities Superintendent; provided that nothing herein shall be construed to apply to persons, firms or corporations under special contract with the city for the construction, extension or repair of the city sewer system.
(Prior Code, § 6-307) Penalty, see § 52.99