Digging up even freshly-surfaced roads in search of blocks in the pipeline may soon become a thing of the past thanks to an improvised water stethoscope developed by the Ernakulam circle of the Kerala Water Authority (KWA).
Digging up even freshly-surfaced roads in search of blocks in the pipeline may soon become a thing of the past thanks to an improvised water stethoscope developed by the Ernakulam circle of the Kerala Water Authority (KWA).