Atlantic water heater produces rusty or discolored hot water.

Safety: Turn off power and close the cold water supply. Allow the heater to cool before opening.

• Drain a few liters of water from the drain valve to remove loose sediment and check water clarity.
• Remove the magnesium anode rod (often combined with the flange) from the top or side of the tank.
• Inspect the anode; if it is reduced to a thin wire or missing, replace it with a genuine Atlantic magnesium or hybrid anode of the correct length and thread.
• Flush the tank until water runs clear.
• If rust persists after anode replacement and flushing, the enamel tank may be significantly corroded and approaching end of life; plan for replacement of the complete heater.