Rainwater Harvesting involves storing of rain water for future use. Based on the configuration of the rainwater harvesting system, the water is stored in:
- Plastic Tanks
- Surface Tanks
- Underground Water Tanks
- Local water bodies
Of these, an underground tank is the most ideal storage option because:
- The soil protects the tank from light and heat.
- The temperature of water from the underground tank only reaches 6 to 8° C all year round
- Due to the darkness and temperature, algae and microorganisms cannot form
This helps ensure consistent water quality. So if fresh rainwater is stored after proper filtration, it will remain the same.