Hot water tanks and heating elements corrode over time. | Hacker News

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		notjtrig on June 30, 2022 \| parent \| context \| favorite \| on: Controversy continues over whether hot water freez... Hot water tanks and heating elements corrode over time.

rootusrootus on June 30, 2022 [–]

The tank is lined with glass, it shouldn't corrode unless that surface gets broken.

sgerenser on June 30, 2022 | [–]

The sacrificial anode rod is designed to corrode. Depending on its composition that means higher concentration of aluminum or magnesium in the water.

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