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ORDINAl[CE NS-~2 it 2 PAGE 9 009 diameter and twelve (12) foot intervals (3.6 m) for piping one (1) inch (25.4 mm) and larger in diameter. (4) Copper tubing - Copper tubing shall be supported at approximately six (6) foot (1.8 m) intervals for piping one and one-half (1-1/2) inches (38.1 mm) and smaller in diameter and ten (10) foot (3 m) intervals for piping two (2) inches (50.8 mm) and larger in diameter. (5) Lead pipe - Lead pipe shall be supported by strips or otherwise for its entire length. (6) In ground - Piping in the ground shall be laid on a firm bed for its entire length, except where support is otherwise provided, which is adequate in the judgment of the Administrative Authority. (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 2~" 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 1%" 4" ¥8 5" - 8- ~ 9