For a water-scarce city where there's a vehicle for every two persons, a cutdown in water consumption towards cleaning cars would be a most welcome step. A high-pressure car washer launched on Tuesday can bring down this water consumption by 55 per cent — something that may be welcomed by many. "By falling back on the usual way of cleaning cars with buckets, one would end up using as many as four of them — that would be roughly 100 litres of water. However, with a high-pressure washer, you would...