Sudden hot water failings are common as storage tanks age; mineral buildup from tough water partially of Geelong minimizes

http://photohistory.oregonstate.edu/works/half/the-importance-of-regular-plumbing-maintenance

Unexpected hot water failures prevail as storage tanks age; mineral accumulation from difficult water partly of Geelong lowers effectiveness, triggers roaring noises, and can cause leakages or uneven water temperature levels.