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Intermittent water supply (IWS) is associated with numerous negative consequences with respect to health and access along with technical impacts that aggravate the sustainable supply of water, thus rendering Sustainable Development Goal 6.1 (SDG 6.1) hardly achievable. The gradual, or zone-by-zone, transition from IWS to continuous water supply is very effective in terms of economic scarcity. This work focused on designing a theoretical ‘hybrid’ hydraulic model where both types of services, intermittent and continuous, were included in the modelling. The preliminary, not calibrated model, which was applied in a district in Amman, has shown to be efficient on both the technical and economic sides as it achieves independent district metering areas. Sustainable access to water, however, necessitates an integrated solution taking into account the technical, economic, social and psychological factors along with the modelling aspect highlighted in this work.

A hybrid hydraulic model for gradual transition from intermittent to continuous water supply in Amman, Jordan: a theoretical study