18-29-304.1 General.

   To prevent rodents from entering structures, plumbing systems shall be designed and installed in accordance with all specifications set forth in this section.

18-29-304.2 Strainer plates.

   All strainer plates on drain inlets shall be designed and installed so that all openings are not greater than 1/2 inch (12 mm) in least dimension.

18-29-304.3 Meter boxes.

   Meter boxes shall be constructed in such a manner that rodents are prevented from entering a structure by way of the water service pipes connecting the meter box and structure.

18-29-304.4 Openings for pipes.

   Where openings have been made in walls, floors or ceilings for the passage of pipes, the annular space between the pipe and the sides of the opening shall be sealed with caulking materials or closed with gasketing systems compatible with the plumbing materials and locations.

(Amend Coun. J. 4-10-19, p. 100029, Art. XVI, § 5; Amend Coun. J. 10-14-21, p. 37722, Art. III, § 5)

18-29-305 Protection of Pipes and Plumbing System Components.

18-29-305.1 Protection against contact.

   Metallic piping, except for cast iron, ductile iron and galvanized steel, shall not be placed in direct contact with steel framing members, concrete or cinder walls and floors or other masonry. Metallic piping shall not be placed in direct contact with corrosive soil. Where sheathing is used to prevent direct contact, the sheathing shall have a thickness of not less than 0.008 inch (8 mil) (0.203 mm) and the sheathing shall be made of plastic. Where sheathing protects piping that penetrates concrete or masonry walls or floors, the sheathing shall be installed in a manner that allows movement of the piping within the sheathing.

(Amend Coun. J. 10-14-21, p. 37722, Art. III, § 6)

18-29-305.2 Reserved.

Editor's note – Coun. J. 10-14-21, p. 37722, Art. III, § 7, repealed § 18-29-305.2, which pertained to breakage.