Characteristics of underground water tanks

 

1. Location and Installation

• Buried Below Ground: As the name suggests, underground water tanks are installed below the earth's surface.

• Excavation Required: Installation involves digging and preparing a pit, which adds to cost and labor.

• Reinforced Structure: Often made from reinforced concrete, polyethylene, or fiberglass to withstand soil pressure.

2. Space Efficiency

• Saves Surface Space: Ideal for properties with limited surface area, allowing land to be used for other purposes (like gardens or driveways).

3. Temperature Regulation

• Stable Water Temperature: Being underground insulates the tank from temperature extremes, which helps prevent freezing or overheating.

4. Aesthetic and Environmental Impact

• Visually Discreet: Hidden from view, which improves landscape aesthetics.

• Reduced Evaporation: Less exposure to sun and air reduces water loss through evaporation.

5. Water Quality

• Protected from Contaminants: Reduced risk of surface contamination from debris or animals.

• Requires Sealing and Maintenance: Must be well-sealed to prevent seepage and contamination from surrounding soil.

6. Structural Considerations

• Soil Pressure: Must be engineered to handle lateral pressure from surrounding soil.

• Traffic Load (if under driveway): If installed under driveways or parking areas, must be designed to handle heavy loads.

7. Access and Maintenance

• Access Hatch: Equipped with manholes or access hatches for inspection and maintenance.

• More Challenging Maintenance: Harder to access compared to above-ground tanks, so maintenance can be more involved.

8. Usage Applications

• Rainwater Harvesting: Commonly used in rainwater harvesting systems.

• Firefighting Reserves: Can be used to store water for emergency use.

• Potable or Non-potable Water Storage: Suitable for both depending on construction and materials.