Philips Dampfbügelstation - Manual (Page 13)

 Remove the detachable water tank.
 Hold the steam generator with both hands and shake well.
 Turn the steam generator on its side with the Calc-Clean rinsing cap
facing upwards, and remove the Calc-Clean rinsing cap
5 Empty the steam generator into the sink.
6 Fill the steam generator with fresh water and shake again.
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