| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sewage discharge system configured to prevent sewage discharged from drainage appliance of a building from leaking to the outside at the time of disaster.SOLUTION: A sewage discharge system 1A includes: a first outflow pipeline 11 connected to drainage appliance 7 of a building 5; a second outflow pipeline 12 connected to a drainage main pipe 20; reservoir means 70; and a catch basin 40. The catch basin 40 includes: a basin body 41 having an inspection hole 51 opened upward, an inlet 52 connected to the first outflow pipeline 11, a first outlet 53 connected to the second outflow pipeline 12, and a second outlet 54 connected to the reservoir means 70; and switching means 42 which changes a position between a first switching position where the inlet 52 communicates with the first outlet 53 so that sewage does not flow from the inlet 52 to the second outlet 54 and a second switching position where the inlet 52 communicates with the second outlet 54 so that sewage does not flow from the inlet 52 to the first outlet 53. The sewage discharge system is installed in the building 5.</p> |
