| 摘要 |
PROBLEM TO BE SOLVED: To provide a pumping drainage system capable of reducing installation locations for a telescopic container without communicating indoor and outdoor sides with each other.SOLUTION: A pumping drainage system includes a plurality of drainage tanks that pump drainage discharged from sanitary fixture equipment installed inside a building, after temporarily storing the drainage. The pumping drainage system has a vent pipe for communicating the plurality of drainage tanks with one another, and a telescopic container that is connected to at least any one of the plurality of drainage tanks or the vent pipe. The number of the telescopic containers is smaller than the total number of the drainage tanks. |
