W&H Multidem C27 Mode D'emploi page 33

Installation
Commissioning
Open the water intake and switch on the power supply to the terminal device.
Operate the flush valve  and flush the filter system until the filtered water runs clear and without bubbles.
At least two bed volumes must be flushed (Chapter 9).
Ensure the filter system is aligned vertically during operation!
When bleeding/flushing, catch any water leaking from the flush hose  in an appropriate container.
Check system for any leaks.
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