Sudden hot water failings are common as storage tanks age; mineral buildup from hard water partly of Geelong decreases

https://classes.iwcc.edu/eportfolios/296/home/common-plumbing-leaks-that-occur-in-homes

Sudden hot water failures are common as storage tanks age; mineral accumulation from difficult water partially of Geelong reduces performance, triggers roaring sounds, and can result in leaks or irregular water temperatures.