... (FTU)0.00.10.20.30.40.5Figure 6. 30. Turbidity duringday flow (Vreeburg et al.,1994).© 20 06 Taylor & Francis Group, London, UKOperation and Maintenance 265 for DI pipes are shown in Figures 6. 36 and 6. 37. Repairs ... levelFigure 6. 17. Pressure-leakagerelation (Brandon, 1984).© 20 06 Taylor & Francis Group, London, UKOperation and Maintenance 269 Figure 6. 42. Map of residentialarea (Obradovi-, 1991).Figure 6. 41. ... water quality, 6 material selection,7 construction methods,8 pressures and flows.Set standards of serviceCompile information on the networksHydraulic analysis for present and future demandsAssess...