| 摘要 |
PROBLEM TO BE SOLVED: To first provide a rainwater storage device capable of bringing about effective utilization of a common, and second provide the rainwater storage device capable of bringing about positive utilization of rainwater. SOLUTION: The rainwater storage device is characterized as follows: a rainwater storage tank 4 is buried underground in the common 2 provided on a lot, so that the rainwater can be collected for storage in the tank 4; and a stored water reusing means (a car washing sprinkler 8, etc.), for drawing up and reusing stored water is provided.
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