The most important water heater maintenance steps are annual sediment flushing, anode rod inspection (replace if more than 50% consumed), testing the T&P relief valve, checking for leaks at connections, verifying gas combustion or electric elements, and (for tankless) annual descaling.

Annual maintenance steps

  • Flush 2–3 gallons of sediment from the drain valve
  • Inspect anode rod, replace if heavily consumed
  • Test T&P relief valve — should release a short burst
  • Check supply, recirculation, and drain connections
  • Verify burner ignition or element function
  • Tankless — descale and clean inlet filter

Our techs perform all of these as part of water heater maintenance.