STRATEGY TO REDUCE NON-REVENUE WATER BASED ON THE SPECIFIC STATUS OF NON-REVENUE WATER IN DEVELOPING COUNTRIES

Abstract

 The reduction of non-revenue water (NRW) is an urgent means of conserving water resources and improving management, especially for urban areas of developing countries where population growth is rapid. This paper discusses the development of an NRW-reduction strategy in Conakry, Guinea. First, the approach to NRW measures as pursued in previous research was studied. Then, with reference to those results, an NRW strategy was formulated that related to the present context of water supply facilities in Conakry. Countermeasures to visible water leakage, improvement of metering efficiency, introduction of hydraulic zones, pressure management at each hydraulic zone, and implementation of these measures were prioritized. Procurement of flowmeters and the formulation of hydraulic zones were started to implement, and it is considered that the key to reducing NRW is continuing steady work related to the reduction of NRW, which will require both time and investment.