Water heater produces discolored (rusty or brown) hot water

Safety first: Let water run until clear before use for cooking or bathing if heavy discoloration is present.

• Isolate source: Run cold water only; if clear, the issue is likely the Giant heater. If both hot and cold are rusty, the problem may be municipal or plumbing related.
• Flush tank: Drain and flush the tank to remove rust and sediment.
• Inspect anode rod: Remove the anode rod and inspect. If it is heavily consumed, replace with a new Giant anode rod.
• Tank age: If the heater is old and rust persists, the tank may be corroding internally and near end of life. Plan for replacement.