More Melbourners are choosing Underground rainwater tanks they save garden space, keep water cool and disappear into the yard. Summer bakes the city; winter drizzles steady rain, so stashing water below cuts evaporation and gives you a reliable feed for irrigation, flushing toilets, even laundry. I’ve seen the hidden set‑up give a clean look homeowners love. And you’ll learn to size them, dodge installation quirks, meet council rules, keep up maintenance, and hook them into s