9. Slum Level physical works - Sewerage

The integration of both the scales and the activities intrinsic to Networking opens up exciting possibilities missing in other development strategies. Many solutions at first thought unviable at micro level become quite economic. A comparative study for Indore showed that the cost of house to house piped sewerage by Networking was about Rs. 1500 per family for the lines and Rs. 1000 for the off-site collection and treatment. Against this, the cost of a shared UNDP twin pit latrine, often considered to be ‘appropriate’ for developing counties, worked out at about Rs. 2500 per family. Whereas the sewers also take care about foul waters from kitchens and bathrooms, UNDP latrines do not. The additional advantages of the networked sewers were, firstly, that all the families had individual facilities and, secondly, that the families other than in slums could also be connected to the same system without recurring the off-site costs – i.e. the cost per family decreased as the contributing families increased.