| 摘要 |
PROBLEM TO BE SOLVED: To provide a rainwater utilization system capable of guiding only clean rainwater into a water storage part by draining the rainwater including polluted one at the begging of the fall without allowing it to flow into the water storage part and without requiring troublesome operations, and enabling a reduction in cost. SOLUTION: A drain port 2 for draining rainwater flowing in an eaves gutter 1 is formed at the bottom part 1a of the eaves gutter 1. An intake 4 communicating with the water storage part 3 is formed in the eaves gutter 1 separately from an outlet 2. The intake 4 is opened at the position where its height from the eaves gutter 1 is higher than the outlet 2. COPYRIGHT: (C)2007,JPO&INPIT
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