When a technician performs a sediment buildup repair in a geyser (water heater), they typically follow a set of procedures to address the issue and restore the geyser to optimal working condition. Here's a detailed list of the work they might do:

1. Initial Assessment

• Inspect the geyser: The technician inspects the geyser to determine the extent of sediment buildup, checking for any visible damage, leaks, or other issues.
• Turn off power and water supply: They ensure the power supply (electric or gas) and the water supply are turned off to prevent accidents during the repair.

2. Draining the Water Heater

• Drain the tank: The technician connects a hose to the drain valve and drains the water from the geyser to remove sediment and prevent any water-related damage.
• Check for drainage blockages: If there’s any sediment blockage in the drain valve or pipe, they clear it out to ensure proper water flow.

3. Removing Sediment Buildup

• Access the heating elements: If necessary, the technician may remove panels or insulation to access the heating elements and internal tank components.
• Clean the heating elements: Sediment buildup often collects around the heating elements. The technician may use specialized tools or brushes to clean off the sediment from the heating elements.
• Scrape off heavy sediment: In more severe cases, sediment may be caked onto the bottom of the tank. The technician might use a scraper or similar tool to remove this buildup carefully.
• Use a descaling solution (if needed): In some cases, the technician might apply a descaling solution to help break down stubborn mineral deposits and make removal easier.

4. Flush the Tank

• Flush with fresh water: After scraping off the sediment, the technician flushes the tank with fresh water to remove any remaining loose debris or scale.
• Ensure thorough cleaning: The technician repeats the flushing process until the water draining from the tank is clear, ensuring all sediment is removed.

5. Inspect Tank Condition

• Check the anode rod: The technician inspects the anode rod, which helps prevent rust in the tank. If it’s worn out, they may recommend replacing it.
• Inspect for rust or corrosion: They check the inside of the tank for any signs of corrosion or damage that could indicate other underlying issues.

6. Reassemble and Test

• Reassemble the geyser: Once the tank is cleaned and sediment removed, the technician reassembles any components, including the heating element, anode rod, and outer panels.
• Refill the tank with water: The technician closes the drain valve, turns on the water supply, and refills the tank.
• Restore power supply: They restore the power supply to the geyser, ensuring it’s functioning properly.
• Test the temperature and operation: Finally, they check if the geyser is heating the water properly and if there are no leaks.

7. Final Checks

• Check for leaks: Ensure there are no water leaks around the tank or the connections.
• Advise on maintenance: The technician may recommend regular maintenance practices to prevent future sediment buildup, such as flushing the tank annually.

8. Cleanup and Documentation

• Clean the work area: The technician cleans up any debris, old parts, or water.
• Provide a service report: They may provide the customer with a service report that outlines the work performed, any parts replaced, and recommendations for future maintenance.

By completing these steps, the technician helps improve the efficiency and lifespan of the geyser by removing sediment buildup, which can cause poor heating performance and even damage the tank over time.