The natural water resources of Southern Africa will not be able to meet future demands if present growth trends in usage continue. Efficient management of water distribution systems is required to provide accurate data on water consumption patterns and losses, and to control and reduce losses to acceptable levels. Sentinel Water Services specializes in water supply system optimisation, which includes demand and leakage management. The company’s experience and expertise supports the following key services:
| – Rationalization of water reticulation | |
| record drawings: | Field confirmation and verification of key components and pipelines |
| – Network analysis modeling: | Hydraulic and transient modeling using state-of-the-art software, calibrated using field data |
| – Condition surveys of meters and valves: | Testing and calibration of bulk and district water meters |
| – Datalogging: | Flow and pressures |
| – Water Audits | |
| – Optimal zoning of water distribution systems: | Review of district metered areas and pressure zones, including supply zone isolation checks |
| – Optimisation and establishment of operating | |
| rules for bulk supply systems | |
| – Pressure Management: | Datalogging, evaluation of cost-to-benefit scenarios, installation of pressure reducing valves (PRV’s), fixed or dynamically controlled, time- or flow-modulated |
| – Leakage Management: | Datalogging, site inspections of visible leaks, step testing of DMA’s, use of noise correlators and geophones |
| – Revenue Enhancement: | Consumer meter analyses, meter revenue analyses, meter audits |
| – Asset Management: | Pipeline condition surveys, including mains replacement programmes, rehabilitation and maintenance programmes |
| – Energy Management: | Energy conservation programmes, energy efficiency programmes |