| 摘要 |
PROBLEM TO BE SOLVED: To provide a basin capable of suitably making sewage water flow to the outside of the basin when an abnormality such as leakage of sewage water occurs in sewage piping connected to the basin.SOLUTION: In a basin 1A, an inflow side invert 21 and a first outflow side invert 31 of a basin body 10 are provided on side parts 14 of a barrel part 11, respectively. An inflow end 20 of the inflow side invert 21 and an outflow end 30 of the first outflow side invert 31 are arranged in the barrel part 11. A second outflow pipe 41 is connected to a lower part of the barrel part 11. A second water outlet 40 connected to the second outflow pipe 41 is provided in the barrel part 11. The inflow end 20 and the outflow end 30 are connected to the second water outlet 40. An opening distance of the second water outlet 40 connecting a center in the width direction of the inflow end 20 and a center in the width direction of the outflow end 30 is larger than the width of the outflow end 30. A cover 50 is mounted on the second water outlet 40 in the barrel part 11 to close the second water outlet 40. |
