New Delhi, Jan. 5 -- The deaths due to contaminated drinking water in Indore's Bhagirathpura area is not an isolated malfunction, but a symptom of longstanding structural issues in India's urban water supply models, particularly the absence of pressurised 24x7 water supply systems. Experts point out that when water flows only for limited hours, distribution pipes run empty for long stretches. That negative pressure draws in sewage through cracks in old pipes. P9...