When the number of people visiting Mandurah started to increase in the 1920s, it started to generate a few practical problems. At this time, toilet waste was collected by the ‘night man', who would take waste away by horse and cart. Most visitors were experienced campers and did the right thing, but sanitary issues were a concern.
When septic tanks were installed in the 1930s, it helped with the removal of waste, but created another problem. In Mandurah, people obtained water from wells which were often close to septic tank outfalls - creating a contamination risk. The Brighton Hotel pumped their effluent into the estuary as its septic system did not work properly. The hotel eventually installed a better system, but the discharge into the estuary from the town continued to be a problem, until the area was completely ‘deep sewered', in the 1980s.