District metering
At GWC, we understand the importance of DMA and PMA boundary integrity and the need for good quality data. Management of the system relies on maintaining quality data from the meters with efficient and effective methods of data collection and analysis. We can offer you the following range of services to support you in this area:

• Boundary valve proving and marking
• Pressure zero testing
• Flow and pressure logging
• Acoustic logging
• End to end testing of district meters
• Data collection
• PRV audits and maintenance
• Critical point monitoring
• Assessment of commercial consumption
• Installation of quadrina and aqua probes
• Meter reading

Pressure management
To ensure that water supply and distribution systems are managed effectively it is necessary for some zones to have their pressure artificially controlled by pressure reducing valves (PRV's). Pressure management is generally controlled by either mechanical fixed outlet or flow modulated valves. Flow modulation enables the valve to react to changes in demand and can be operated remotely. Pressure management enables the pressures to be reduced while ensuring compliance with DG2 standards.

GWC can assist you in the operation of your system and help implement new systems by the following services:

• Topographical surveys
• Pressure management
• Validation of PMA's
• PRV maintenance and monitoring

Acoustic Logging
Acoustic logging has now become an integral part of leakage methodology. This technology coupled with traditional methods of leak detection has enabled companies to operate more efficiently. We offer acoustic logger deployment, retrieval and analysis.