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P.ESOI,UTIO~.~ 93-002 Page 3 (7) Plastic pipe - Plastic pipe shall be supported at not to exceed four (4) feet (1.2 m) on centers, at end of branches, and at change of direction or elevation. Supports shall allow free movement, but shall restrict upward movement of lateral runs so as to not create reverse grade. (8) Suspended lines shall be suitably braced at no more than forty (40) foot intervals to prevent horizontal movement. (c) Hangers and Anchors (1) Material - Hangers and anchors shall be of material of sufficient strength to maintain their proportional share of the weight of pipe and contents. (2) Ail piping, fixtures, and equipment shall be adequately supported to the satisfaction of the Administrative Authority. (3) Ail horizontal cast iron drain, waste and vent piping, and all other horizontal piping 2½" and larger, shall be supported with approved rod and hangers, in accordance with Subsection (b) of this Section and with the following table: PIPE/TUBE SIZE MINIMUM ROD SIZE (Larger) (Engineered) Exception: Plumbers tape (perforated strap iron) may be used to support piping 2" and smaller in type V construction only. Plumbers tape shall be galvanized and not less than ~" wide and 22 gauge. 2. The city Council hereby finds and determines that the above amendment to section 316 of the Uniform Plumbing Code, 1991 edition, is necessary for the following reasons: This amendment is intended to provide for a more effective and consistent system of pipe support for piping used in plumbing and piping systems. This is deemed necessary in Santa Ana because of the significant potential for damage due to seismic activity. Santa Ana is in close proximity to major active fault systems in Southern California, and the Uniform Building Code