Sydney Water on Instagram: "Sewage vs Sewerage - what’s the difference? 🤔 They may sound similar, but they mean very different things. Sewage is the wastewater itself - the stuff that goes down your drains, toilets, showers, and sinks. It’s 99% water. The remaining 1% is made up of things you’ve added to water as you’ve used it. Sewerage is the system - the network of pipes, pumps, and treatment plants that carry and treat that wastewater. We manage around 27,000km of wastewater pipes and 30 wa