For the purpose of this chapter, the following definition shall apply unless the context clearly indicates or requires a different meaning.
PLUMBING. Engaging in either or both of the following:
(1) The work or business of making any connections whatsoever with the water pipes, water mains, branch, sewers, storm sewers, drains or other service pipes of the city, or making any repairs, additions or alterations of any pipe, tap, stop cock, water closet or any other fixture connected with or designed to be connected with the water works or sewerage system of the city; and/or
(2) The work or business of making any connections whatsoever for gas stoves, heaters, furnaces or other gas appliances of any kind in homes or other buildings or premises in the city, or of making any repairs, additions or alterations of any gas appliances or pipes or other fixtures connected with the gas system in the city.
(`86 Code, § 4.60)