Technical Booklet N Drainage·Page 9·0.4
Guidance on Rainwater Drainage Design
Section 4 provides guidance on rainwater drainage design including suitable materials, sizing of pipes and gutters, outlets, and system capacity calculations for expected flow and drainage area.
Section 4 gives guidance on the design of rainwater drainage including suitable materials, the sizing of pipes, gutters and outlets, and the capacity of the system related to the expected flow and the area to be drained.
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