Rainwater Harvesting in Bangalore| Rainy Filters
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Understand the Different Techniques of Rainwater Harvesting in Bangalore

As the world is facing the challenges of climate change, especially the scarcity of rain in many areas, rainwater conservation has become important to creating a sustainable environment. Since groundwater is one of the primary sources of freshwater catering to the demand of the industrial, agrarian, and domestic sectors of the country, its large-scale usage is leading to increased exploitation of groundwater resources, further resulting in water wastage.

Considering the fact that groundwater resources are depleting every day and it is impossible to generate artificial water on a very wide scale, adopting rainwater harvesting in Bangalore is the best way to conserve water. You can implement this practice efficiently in lieu of conventional water supplies currently being tapped out consistently.

What Is Rainwater Harvesting, and Why Do We Need It?

Rainwater harvesting is the simple process of gathering and storing rainwater for future usage. The process involves using artificially designed systems to collect and store rainwater running off man-made or natural catchment areas, like rocky surfaces, compounds, hill slopes, compounds, and artificially repaired semi-pervious or impervious land surfaces. Collected rainwater is filtered, stored, and used in varied ways, or it can also be used directly for recharge purposes. Harvested rainwater does not carry any form of impurity, and the process also offers benefits like low storage and maintenance costs except for the costs involved in periodical cleaning.

It is crucial to adopt rainwater harvesting in Bangalore and other areas in the face of depleting groundwater levels along with fluctuating climate conditions. Rainwater harvesting is one of the best methods to practice and follow in order to avoid the adverse effects of rising water scarcity. Reserving good quality, filtered rainwater can reduce urban flooding, recharge local aquifers, and can be used for washing, irrigation, cleaning, cooking, and bathing. Above everything else, the method ensures water availability in all water-scarce areas.

Major Rainwater Harvesting Techniques

Two major rainwater harvesting techniques are followed in Bangalore. They are:

Groundwater Recharge

This is a hydrologic procedure of water conservation where water moves down from the surface to the ground. Groundwater recharge helps water enter an aquifer, which also serves as a distribution system. Rainwater collected through this system is used to recharge groundwater aquifers through different artificial recharge procedures. These include the use of:

  • Contour bund

  • Gully plugs

  • Dug well recharge

  • Check dam/nala bund/cement plug

  • Percolation tank

  • Recharge shaft

Surface Runoff Harvesting

In this process of rainwater harvesting in Bangalore, rainwater flows away as surface runoff and is stored for later use. The surface water is stored by diverting the flow of small streams and creeks into underground reservoirs or those on the surface. This form of rainwater harvesting provides water for cattle, farming, and general domestic use and is suitable for urban areas. Storm runoff or rooftop rainwater can be collected in the urban areas by using:

  • Tubewell

  • Recharge pit

  • Recharge well

  • Recharge trench

Types of Rainwater Harvesting Systems

Speaking of the different rainwater harvesting systems are direct pumped, indirect pumped, and indirect gravity. Nevertheless, the most basic type of rainwater harvesting system is the garden water butt which involves collecting rainwater in a container, and collected rainwater is used for watering the garden. Pairing the water collection tank with a good quality filter can further improve the quality of harvested water.

The filter purifies rainwater before it enters the collection tank by removing debris, like leaves, moss, and twigs. Yet another filter can be used in the later stages of rainwater collection to eliminate small particles from collected rainwater. Rainwater, thus collected, can be used to meet varied potable and non-potable requirements.

Conclusion

Wondering which would be the ideal rainwater harvesting system for you? Well, much depends on the individual situation. Direct-pumped systems are best for places with limited internal space, and the indirect gravity option would be ideal for areas where a high-level header tank can be used easily. Regardless of your choice, you can always consult Rainy to choose the right rainwater harvesting systems that may be specific to your requirements. Contact them today to find rainwater harvesting systems and filters that will change the way you collect rainwater.

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Farmland Rainwater Harvesting System
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11th cross, 7th Block, Jaya Nagar,
Bengaluru, Karnataka - 560070.

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