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704.7 Collection pipe labeling and marking.
Collection piping that conveys untreated water for reuse shall be painted gray in color or covered in a gray jacket and shall be labeled, embossed, or integrally stamped or marked, with the words: "CAUTION: UNTREATED WATER FOR RE-USE" or the piping shall be installed with a gray identification tape or wrap. Pipe identification shall include the contents of the piping system and an arrow indicating the direction of flow. Hazardous piping systems shall also contain information addressing the nature of the hazard. Pipe identification shall be repeated at intervals not exceeding 25 feet (7620 mm) and at each point where the piping passes through a wall, floor or roof. Lettering shall be readily observable within the room or space where the piping is located.  
(Am. L.L. 2023/077, 6/11/2023, eff. 6/11/2023)
Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2023/077.
Section PC 705: Joints

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