Rainwater harvesting is the process of collecting, filtering and storing water from roof tops, paved and unpaved areas for multiple uses. The harvested water can also be used for potable purposes after testing and treatment. The surplus water after usage can be used for recharging ground water aquifer through artificial recharge techniques. This can also result in improving the quality of the ground water .
Borewell in Chennai
It is designed after assessing the site conditions such as incident rainfall, subsurface strata and their storage characteristics, infiltration test and by building suitable structures to collect and store rainwater. Rainwater harvesting system provides a source of soft, high quality water, reduce dependence on wells and other sources, and, in many contexts, are cost effective.
The system can range in size from a simple PVC tank to a contractor designed and built sump – costing thousand of rupees. Rainwater system are inherently simple in form. Harvesting rainwater is not only water conserving, it is also energy saving since the energy input required to operate a centralized water system can be bypassed. A range of filters for different filtration rates have also been designed using different filter media.
