ORD 0441 - Laserfiche WebLink

(5) Section 1008 (c) is a~ended to read as follows: "Any water piping installed in or under a concrete slab resting on the ground, and ferrous water service pipes installed underground in any location shall be installed in accordance with the following requirements: 1. Ferrous water piping shall have a protective coating of an approved type, machine applied and conforming to recognized standards. Field wrapping or coating may be permitted by the administrative authority if equivalent pro- tection is provided. Zinc coating (galvanizing) shall not be deemed adequate protection for piping or fittings. 2. Copper tubing shall be installed without Joints where possible. ~nere Joints are permitted, they shall be silver brazed or equal and fittings shall be wrought copper." b. Additions. (1) Section 203 (f) is hereby added to the Adopted Code to read as follows: "Section 203 (f). The use of ferrous and non-ferrous metals in the same water system is pro- hibited except by special permission of the Director of Public Works and upon satisfactory isolation of the dissimilar metals to prevent electrolytic corrosion." (2) Talbe 4-4 is hereby added to Chapter 4 of the Adopted Code to read as follows: Table Copper, Brass, or Equivalent Pipe Lists maximum unit loading and maximum length of drainage and vent piping based upon 1/4" foot slope. Naximumunits Size of Pipe Drainage~ **** 1~" 1%" 2" 2%" 3" Vertical 0 ~8~8 **18~n~32 ~50 300, 700 1400 Horizontal O- ~'5 *'11"20 ***36 200 360 700 Maximum Length (feet) Vertical 0 65 90 150 200 300 420 520 Horizontal Unlimited Vent Piping Horizontal And Vertical: Maximum units ,2 **8 30 60 100 300 600 1500 Naximu~Length(feet) 45 60 120 180 212 300 400 520 * Vertical only Except six-unit traps or fixtures *** Only two 6-unit traps or fixtures allowed on any horizontal branch or drain; and when tank type water closets are used not to exeed four 6-unit fixtures on any vertical pipe or stack, provided that not more than t~o such fixtures are connected to the stack in any one story. NOTE: The diameter of an individual vent shall be not less than one and one quarter (1%) inches, nor less than one half (%) the diemeter of the drain to which it is connected. Not to exceed one third (1/3) of the total permitted length of any vent may be installed in a horizontal position. Fixture unit load values for drainage and vent piping shall be computed £romTables and 4-2. *** Excluding trap arms c. Deletions (1) Section 1.1 is hereby deleted. (2) Section 1.2 is hereby deleted. (3) Section 1.3 is hereby deleted. (4) Section 1.4 sub-paragraph (10) only, is hereby deleted. (5) Section 1.7, first paragraph only, is hereby deleted. (6) Section 1.10, sub-paragraph(a) only, is hereby deleted. (7) The table entitled Schedule of Fees, on Page 6a, is hereby deleted. (8) Part T~o is hereby deleted in its entirety. (9) Appendix D is hereby deleted in its entirety.