| 摘要 |
PROBLEM TO BE SOLVED: To provide a rainwater storage facility which has a function of switching a water storage tank in a mode in which inflow of initial rainwater is prevented. SOLUTION: The rainwater storage facility which is provided with a water storage tank for storing therein inflow rainwater for water utilization, has a switching means arranged in the vicinity of an inflow port of the water storage tank, for switching the water storage tank in either a mode in which inflow water is poured into the water storage tank or a mode in which the inflow water is discharged to a water discharging channel, based on a turbidity, a water inflow quantity, meteorological data, etc. COPYRIGHT: (C)2009,JPO&INPIT
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