Odor of rotten eggs or sulfur from hot water taps supplied by the Triangle Tube system.

Safety: High temperatures used for disinfection can cause scalding. Use caution and follow guidelines.

• 1. Verify source: Confirm the odor is only from hot water, not cold. If both are affected, the issue may be with the municipal supply.
• 2. Raise temperature temporarily: If safe, temporarily raise the tank temperature to 140°F (60°C) for several hours to help kill bacteria, then return to a safe setting and use a mixing valve to prevent scalding.
• 3. Flush tank: Drain and flush the indirect tank thoroughly to remove sediment.
• 4. Anode rod: If your indirect tank has an anode rod, consult the tank manual. Replacing a magnesium anode with an aluminum/zinc anode can reduce odor. This should be done by a technician.
• 5. Ongoing treatment: In severe cases, periodic disinfection or water treatment may be required.