If you neglect to flush your water heater annually, minerals like calcium and magnesium precipitate out of hard water and accumulate in a dense layer at the bottom of the tank. This sediment blanket insulates the water from the burner or heating elements, severely reducing heating efficiency, increasing your monthly energy bills, and causing loud rumbling or popping noises. Over time, this trapped heat creates localized overheating spots that warp the steel tank wall, weaken welded seams, and drastically shorten the operational lifespan of your water heater, leading to premature failure. Verification: Attach a garden hose to the bottom drain valve and flush sediment out of the tank every year.
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