Reducing Water Wastage due to RO Purification

Wander into the kitchen at any home or office in urban India, and you’ll probably find a reverse osmosis (RO) water purification device ready to dispense drinking water. These devices have seen a significant uptake over the last few years, since they offer the promise of health and hygiene at little cost. Unfortunately, these advantages come at the cost of massive water wastage, which I believe can be avoided with a bit of imagination.