The requirements set forth in sections 17.16.120 through 17.16.140, 17.16.180, 17.16.240, 17.16.420 and 17.16.450 of this chapter, and successor sections, shall apply to all persons performing any plumbing work in or upon any of the mains, connections or appliances appertaining to the city waterworks, and any violation of such sections or failure to comply therewith shall be deemed a violation of this section. (Prior code § 49-6-32)