Automatic Back-Flushing Unit - Kessel 85323/120A Bedienungsanleitung

3. System description and technical data
3.3 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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