The study looked at setting up and testing greywater reuse systems in homes. They wanted to see if it was possible to use water from sinks and showers to water gardens and flush toilets. They tested this in four different Melbourne homes with different setups. They found that the quality of the greywater, how much water was saved, and the costs of the systems varied a lot depending on the specific home and how the people living there used water. They also found that there were challenges in installing and maintaining these systems, and that more research is needed to understand the risks to the environment and public health. The results can help people thinking about using greywater systems in their own homes.