18-29-405.7 Design of overflows.

   Where any fixture is provided with an overflow, the waste shall be designed and installed so that standing water in the fixture will not rise in the overflow when the stopper is closed, and no water will remain in the overflow when the fixture is empty.

18-29-405.7.1 Connection of overflows.

   The overflow from any fixture shall discharge into the drainage system on the inlet or fixture side of the trap.

   Exception: The overflow from a flush tank serving a water closet or urinal shall discharge into the fixture served.

18-29-405.8 Access to concealed connections.

   Fixtures with concealed slip joint connections shall be provided with an access panel or utility space at least 12 inches (300 mm) in its smallest dimension or other approved arrangement so as to provide access to the slip connections for inspection and repair. Where such access cannot be provided, access doors shall not be required provided that all joints are soldered, solvent cemented or screwed so as to form a solid connection.

18-29-406 Automatic Clothes Washers.

18-29-406.1 Water connection.

   The water supply to an automatic clothes washer shall be protected against backflow by an air gap that is integral with the machine or a backflow preventer shall be installed in accordance with Section 18-29-608. Air gaps shall comply with ASME A112.1.2 or ASME A112.1.3.

(Amend Coun. J. 10-14-21, p. 37722, Art. IV, § 12)

18-29-406.2 Waste connection.

   The waste from an automatic clothes washer shall discharge through an air break into a standpipe in accordance with Section 18-29-802. The trap and fixture drain for an automatic clothes washer shall be not less than 2 inches (51 mm) in diameter. The fixture drain for the standpipe serving an automatic clothes washer shall connect to a 2-inch (51 mm) or larger diameter fixture branch or stack. Automatic clothes washers that discharge by gravity shall be permitted to drain to an approved trench drain.

   Exception: The waste from a domestic automatic clothes washer shall be allowed to discharge through an air break into a laundry sink.

(Amend Coun. J. 10-14-21, p. 37722, Art. IV, § 12; Amend Coun. J. 12-14-22, p. 58278, Art. VI, § 4)

18-29-406.3 Reserved.

Editor's note – Coun. J. 10-14-21, p. 37722, Art. IV, § 12, repealed § 18-29-406.3, which pertained to waste connection.

18-29-407 Bathtubs.

18-29-407.1 Approval.

   Bathtubs shall conform to ANSI Z124.1, ASME A112.19.1, ASME A112.19.4, ASME A112.19.9, CSA B45.2, CSA B45.3 or CSA B45.5.