PLUMBING

The practice, materials, and fixtures used in the installation, maintenance, extension, and alteration of all piping, fixtures, appliances, equipment, and appurtenances in connection with any of the following: sanitary drainage or storm drainage facilities, the venting system and the public or private water supply systems, within or adjacent to any building; also the practice and materials used in the installation, maintenance, extension, or alteration of storm water, liquid-waste, or sewerage, and water-supply systems of any premises and their connection with any point of public disposal or other acceptable terminal.