1、npurificationnworks npipe networkndistribution system nmain nkilopascal nubiquitous adj. nwater consumptionnemergency nbackup nemergency backupnplumbing nmeterage nseweragenper capitanwater meternleak nsocioeconomic ndwelling Source(watershed)divideCollection works (Reservoir)TransmissionworksTreatm
2、ent works(Filtration Plant)Distribution SystemTreatment works(Softening plant ) orIron Removal PlantStorageReservoirCollection works (Well field)Source (Groundwater)Mixing and flocculation SedimentationFiltrationDisinfectionnMany factors influence water use for a given system. nFor example, the mere fact that water under pressure is available stimulates its use, often excessively, for watering lawns and gardens , for washing automobiles, for operating air-conditioning equipment, and for performing many other activities at home and in industry.
