For the purpose of this subchapter, the following definition shall apply unless the context clearly indicates or requires a different meaning.
PLUMBING. Includes the following:
(1) All piping, fixtures, appliances, equipment, devices, and appurtenances in connection with the water supply, water distribution, and drainage systems, including hot water storage tanks, water softeners, and water heaters connected with such water and drainage systems, and the installation thereof;
(2) The construction, connection, or installation of any drain or waste piping system from the outside, or proposed outside, foundation walls of any building to the mains or other sewerage system terminal within bounds of, or beneath an area subject to, easement for highway purposes, including private domestic sewage treatment and disposal systems, and the alteration of any such systems, drains, or waste piping;
(3) The water service piping from the outside, or proposed outside, foundation walls of any building to the water service terminal;
(4) The water pressure systems, as provided in Wis. Stats. Chapter 144; and
(5) A plumbing and drainage system so designed and vent piping so installed as to keep the air within the system in free circulation and movement; to prevent, with a margin of safety, unequal air pressures of such force as might blow, siphon, or affect trap seals or retard the discharge from plumbing fixtures or permit sewer air to escape into the building; to prohibit contamination or pollution of any potable water supply and distribution system; and to provide an adequate supply of water to properly serve, cleanse, and operate all fixtures, equipment, appurtenances, and appliances served by the plumbing system.
(Prior Code, § 15.02)