Overview of the cleaning methods
Surge flushing
Back-up flushing
Back-up flushing
Process description
In the case of back-up flushing, devices are introduced into the sewer that reduce its flow cross section, back up the sewage and thus increase the flow velocity. As a result of the difference in the water level in front of and behind the devices, they are driven forward as the flushing water flows around them. In the process, the unconsolidated deposits are removed and transported [Führb1980].
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