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Home › Glossary › Sediment

Sediment

Sediment is mineral scale and debris that settles at the bottom of a tank water heater over time.

Jar of mineral sediment drained from a water heater

Sediment insulates the water from the burner, wastes energy, causes popping or rumbling noises and can shorten tank life. Periodic flushing slows the buildup on younger tanks.

See the maintenance guide.

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