| 摘要 |
<p>A drainage pump unit (1) for drain off faecal and/or not faecal water from a building is equipped with a pump swamp (5) that is placed in a sewer line (6,6A,7) said sewer line is equipped with an overflow (7). The sewer line is connected to a water closure (11). Down in the pump swamp there is provided a pump (8) that in dependency of the amount of waste water in the pump swamp is adapted to pump waste water, via a pump sewer line (9), down streams in the sewer line after the water closure (11). In this way it is secured that the drainage unit (1) only starts the pump under extreme circumstances, such as a cloudburst, where the water closure is active, and therefor closes for drain off and conducting of waste water from for instance, a cellar in a building. A special interesting use of the drainage unit is I connection with drain off of waste water from a single family house.</p> |
