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Rainwater catchment system materials shall comply with Section 1602.7.1 through Section 1602.7.4.
1602.7.1 Water Supply and Distribution Materials
Rainwater catchment water supply and distribution materials shall comply with the requirements of this code for potable water supply and distribution systems unless otherwise provided for in this section.
1602.7.2 Rainwater Catchment System Drainage Materials
Materials used in rainwater catchment drainage systems, including gutters, downspouts, conductors, and leaders shall be in accordance with the requirements of this code for storm drainage.
1602.7.3 Storage Tanks
1602.7.4 Collections Surfaces
The collection surface shall be constructed of a hard, impervious material.
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