18-29-301.5 Pipe, tube and fitting sizes.

   Unless otherwise specified, the pipe, tube and fitting sizes specified in this chapter are expressed in nominal or standard sizes as designated in the referenced material standards.

18-29-301.6 Prohibited locations.

   Plumbing systems shall not be located in an elevator shaft or in an elevator equipment room. Plumbing systems shall not penetrate an exit enclosure, except as expressly allowed by Chapter 10 of the Chicago Building Code.

   Exception: Floor drains, sumps and sump pumps shall be permitted provided they are indirectly connected to the plumbing system.

   Plumbing systems shall not be located in electrical rooms except as expressly allowed by the Chicago Electrical Code.

(Amend Coun. J. 9-6-17, p. 55278, Art. II, § 63; Amend Coun. J. 10-14-21, p. 37722, Art. III, § 2)

18-29-301.7 Conflicts.

   In instances where conflicts occur between this chapter and the manufacturer's installation instructions, the more restrictive provisions shall apply.

(Added Coun. J. 10-14-21, p. 37722, Art. III, § 3)

18-29-302 Exclusion of Materials Detrimental to the Sewer System.

18-29-302.1 Detrimental or dangerous materials.

   Ashes, cinders or rags; flammable, poisonous or explosive liquids or gases; oil, grease or any other insoluble material capable of obstructing, damaging or overloading the building drainage or sewer system, or capable of interfering with the normal operation of the sewage treatment processes, shall not be deposited, by any means, into such systems.

18-29-302.2 Industrial wastes.

   Waste products from manufacturing or industrial operations shall not be introduced into the public sewer until it has been determined by the building commissioner or commissioner of water management that the introduction thereof will not damage the public sewer system or interfere with the functioning of the sewage treatment plant.

(Amend Coun. J. 3-5-03, p. 104990, § 48; Amend Coun. J. 11-13-07, p. 14999, Art. II, § 1)

18-29-303 Materials.