§ 18.20.060 — Section 417.5.3 Shower receptor, added

18.20.060 - Section 417.5.3 Shower receptor, added.

International Plumbing Code, 2021 Edition, Section 417.5.3 Shower Receptor, is hereby added to read as follows: 421.5.1.1 Shower Receptor. Shower receptors shall have a finished curb, dam or threshold not less than one (1) inch below the sides and back of the receptor. The curb shall be not less than two (2) inches nor more than nine (9) inches in depth when measured from the top of the curb to the top of the drain. The finished floor shall slope uniformly toward the drain not less than one-fourth (¼) inch per foot nor more than one-half (½) inch, and floor drains shall be flanged to provide a watertight joint in the floor. 421.5.2 Shower Linings. All shower receptors shall be provided with an approved lining, except as noted herein. The adjoining walls and floors, enclosing field-constructed shower receptors shall be lined with copper or other approved materials listed in this Code, extending not less than three (3) inches beyond or around the rough jambs and not less than three (3) inches above finished thresholds. Recessed shower compartments need not be lined, provided the compartment is formed of concrete, is recessed a minimum of four (4) inches below the adjacent floor level, and the concrete is not less than three and one-half (3½) inches thick with an ultimate compressive strength of not less than two thousand (2000) pounds per square inch. 421.3 Shower Waste Outlet. An approved flanged drain shall be installed with shower sub-pans or linings. The flange shall be flush with the sub-base and be equipped with a clamping ring or other device to make a water-tight connection between the lining and the drain. The flange shall have weep holes to ensure constant drainage of water to sanitary drainage system. Shower receptacle waste outlets shall be not less than two (2) inches in diameter and shall have a removable strainer.

(Ord. No. 019528, § 1, 8-1-2023)