We had no trouble getting to Sydney.
We stopped in Wyong and again looking for public dump station which have been reported. We didn't find either. There were still a couple of options. The caravan parks at Berowra and Sans Souci are said to have dump stations.
I rang the caravan park at Sans Souci to check that they had space. They did but the cost was $39 per night! We booked into La Mancha at Berowra which only charge $26 per night!.
It being sunny and reasonably early, we did the laundry.