PLUMBING: Means and includes the business, trade, practice or work, materials and fixtures used in the design, construction, installation, improvement, extension and alteration of all piping, fixtures, appliances and appurtenances in connection with any plumbing system.
PLUMBING SYSTEM, PUBLIC OR PRIVATE: Means and includes:
A. Plumbing fixtures, interconnecting pipes and traps;
B. Soil, waste and vent pipes;
C. Building drains and building sewers;
D. Sanitary and storm water drainage facilities;
E. Liquid waste and sewerage facilities;
F. Water supply system and distribution and disposal pipes of any premises;
G. Water treating and water using equipment attached to a plumbing system; and
H. All the respective connections, devices and appurtenances of any plumbing system, public or private, within or adjacent to any building, residence or structure to and including a connection with any point of a public or private supply, distribution or disposal system or other acceptable terminal. (1960 Code, Sec. 2-501)