Hydraulic Efficiency; Automatic Back-Flushing Unit - Kessel System 400 Anleitung Für Einbau, Bedienung Und Wartung

3. System description and technical data

3.3 Hydraulic efficiency

All KESSEL rainwater filters for installation in the ground or for

3.4 Automatic back-flushing unit

installation in an exposed drain pipe are available either with or
without back-flushing unit for filter cleaning. The back-flushing
unit may only be used with service water.
The back-flushing unit can be installed later, either in a filter
shaft for installation in the ground or in a filter shaft for installa-
tion in exposed pipes, as appropriate
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