| 摘要 |
PROBLEM TO BE SOLVED: To make a drainage facility of a temporary toilet or the like available even when a sewer pipe cannot be used in the case of a disaster such as an earthquake, by applying a basin to the drainage facility of the temporary toilet or the like and using the basin as a flow passage switching device so as to select a treatment destination of drain water including filth stored in each of manholes in accordance with a situation of the sewer pipe.SOLUTION: A basin 10 comprises a basin body 12 including one inflow port 14 and two outflow ports 16, 18. Switching means 20, 52 are provided within the basin body 12, and an outflow destination of drain water flowing from the inflow port 14 into the basin body 12 can be selectively switched to any one of the outflow ports 16, 18 by the switching means 20, 52. |
