Overview of the cleaning methods
Surge flushing
Back-up flushing
Flushing shield
Cleaning personnel
In the past, flushing shields guided by cleaning staff have been used in large profiles. Nowadays, due to health and safety requirements, this cleaning option is no longer in use.
Image:
Flushing shield in a large profile sewer (Source: Postcard from "Les Egouts de Paris")
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