While residential household water supply pipes do not require a rigid, recurring scheduled flush under normal circumstances, flushing your home's plumbing system once or twice a year is highly recommended to prevent mineral scale accumulation and clear out stagnant sediment. Annual flushing is especially important for water heater tanks, which should be drained and flushed annually to remove heavy calcium sediment. Additionally, if your home has been unoccupied for weeks or months, you should flush all cold and hot water lines for several minutes before use. Verification: Open multiple faucets simultaneously for a few minutes during your annual maintenance routine to clear out any minor pipeline debris.
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