To maintain a water heater with hard water, regular draining and flushing of the tank is crucial. Hard water contains minerals like calcium and magnesium that can build up as sediment in your water heater, reducing its efficiency and lifespan.
Why Hard Water is a Problem for Water Heaters
Hard water causes scale buildup inside the water heater tank, which acts as an insulator. This means the heating element has to work harder to heat the water, leading to:
- Increased energy consumption
- Reduced heating efficiency
- Overheating of the element
- Potential damage and a shortened lifespan of the water heater
How to Maintain Your Water Heater
The primary method for combating hard water issues in a water heater is to drain and flush the tank regularly.
Draining and Flushing the Water Heater
| Step | Description |
|---|---|
| Frequency | Manufacturers often recommend flushing every six months. Some advise more frequently, such as every two to three months. |
| 1. Safety First | Turn off the power (electric) or gas supply to the water heater. Let the water cool down to avoid scalding. |
| 2. Connect Hose | Attach a garden hose to the drain valve at the bottom of the tank. |
| 3. Drain the Tank | Run the hose to a safe drainage area (e.g., a floor drain or outside). Open the drain valve and let the water drain completely. |
| 4. Flush the Tank | Open the cold water inlet valve briefly to stir up sediment. Repeat the draining and flushing process until the water runs clear. |
| 5. Close and Refill | Close the drain valve tightly. Open the cold water inlet valve to refill the tank. |
| 6. Restore Power | Once the tank is full, turn the power (electric) or gas supply back on. |
Important Considerations:
- Always consult your water heater's manual for specific instructions.
- Be cautious when working with gas and electricity. If unsure, consult a professional.
- Sediment buildup can be substantial in areas with very hard water, so more frequent flushing may be necessary.
By draining and flushing your water heater regularly, you can significantly reduce the negative impacts of hard water, improve its efficiency, and extend its lifespan.
