Unexpected warm water failings prevail as tank age; mineral accumulation from tough water in parts of Geelong lowers

https://learn.multnomah.edu/eportfolios/918/home/why-you-need-a-plumber-to-clear-blocked-drains

Unexpected warm water failures are common as tank age; mineral build-up from difficult water in parts of Geelong decreases performance, triggers rumbling noises, and can lead to leakages or uneven water temperatures.