Question 1 of 40
Walking Character
2%
Princess Right

Was ist die wichtigste Aufgabe im Bereich Sanitär, die vor dem Eintreffen frostiger Wintertemperaturen erledigt werden muss?

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A Außenarmaturen und Bewässerungsleitungen entleeren und absperren
B Alle Dichtungsscheiben der Wasserhähne ersetzen
C Neue Wasserfilter installieren
D Die Temperatur des Warmwasserbereiters erhöhen
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