What is the required water pressure for the washer dryer to operate correctly?
The water pressure in the supply network must be at least 100 kPa (1 bar) and must not exceed 1000 kPa (10 bar). When the tap is open, the water flow must be at least 8 litres per minute. If the water pressure exceeds the maximum, a pressure-reducing valve must be installed. (Page 17)
From the official Bosch WDU28 Washer Dryer manual, page 17
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