This involves purifying the water so that it is as clean as conventional drinking water. It is then mixed with deep - well water and goes into the groundwater basin.
अशाप्रकारे, पाण्यात भर पडते आणि त्यात खारे पाणी मिसळले जाऊन जमिनीखालचा पाणीपुरवठा खराब होण्याचेही टळते.