Sydney Water - Water Quality and Filtration This weblink outlines Sydney Water filtration and desalination processes.
BBC Science - Purifying Water This weblink by the BBC covers supplying safe water, adding fluoride to the water supply, filtering water at home and obtaining water from other sources.
ABC Splash - Water Treatment From Reservoir to Home This weblink uses detailed diagram to explain this process.
Water Secure - Water Purification This website is produced by a Queensland Government authority and covers the water purification processes with easy to follow diagrams.
Water Secure Fact Sheet - Purified Recycled Water This factsheet covers the advanced water treatment process in an easy to understand format with good use of diagrams to clarify the process.