| 摘要 |
PROBLEM TO BE SOLVED: To provide a rainwater conduit which prevents inundation caused by local severe rain, and enables its installation work in the ground in a relatively simple manner in a short period of time. SOLUTION: According to the structure of the rainwater conduit, first and second trunk conduits 2A, 2B are embedded in two separate districts 1A, 1B, and a bypass conduit 5 connecting the trunk conduits together is arranged between the same. The bypass conduit 5 is provided with an in-line pump 10 for supplying water from one of the first and second trunk conduits 1A, 1B to the other trunk conduit via the bypass conduit 5. COPYRIGHT: (C)2004,JPO
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