| 摘要 |
PROBLEM TO BE SOLVED: To provide a rainwater storage device and a rainwater storage system using the rainwater storage device having excellent installation performance, maintainability and water storage efficiency and harmonizable with the appearance of a building even if a plurality of rainwater storage devices are dispersedly arranged. SOLUTION: The rainwater storage device 16 is integrally provided with an infiltration stormwater inlet 17 at least partially buried in the ground, and an overflow tank 18 mounted on the upper part of the infiltration stormwater inlet 17 in the exposed state from the ground surface to allow rainwater stored over the fixed amount, to flow down into the infiltration stormwater inlet 17 by an overflow structure having an overflow pipe 21. The infiltration stormwater inlets 17, 17 of the adjacently arranged rainwater storage devices 16, 16 are connected to each other underground using drain pipelines 20, 20. COPYRIGHT: (C)2006,JPO&NCIPI
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