Sudden hot water failings are common as storage tanks age; mineral accumulation from tough water in parts of Geelong decreases

https://academy.educause.edu/eportfolios/12410/home/reasons-why-homeowners-trust-plumbers

Sudden warm water failures prevail as tank age; mineral accumulation from hard water partially of Geelong reduces performance, triggers grumbling sounds, and can cause leakages or uneven water temperature levels.