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

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

Unexpected hot water failures prevail as storage tanks age; mineral accumulation from hard water partly of Geelong reduces performance, causes rumbling noises, and can cause leaks or irregular water temperatures.