You should flush your residential storage tank water heater at least once every single year under standard operating conditions. However, if your home features very hard water with high mineral content, you should flush the tank every six months to prevent excessive calcium and lime scale accumulation. Routine annual flushing clears out sediment, maintains high heating efficiency, prevents premature tank corrosion, and significantly extends the overall operational lifespan of your water heater. Verification: Mark your calendar to perform an annual maintenance flush using a garden hose and floor drain.
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