The City of Guelph water system operates with two pressure zones. A third zone is being developed and implemented. The elevated storage in the second pressure zone was taken out of service for rehabilitation and this pressure zone was converted to a closed pressure zone for the duration. Almost immediately, the City began to experience a number of significant water main breaks in a focused area of the pressure zone.
C3 Water provided
The analysis led to a better understanding of the source of pressure transients in the modified operational mode, and short-term mitigation measures. As a long-term measure, the City hired C3 Water to build and calibrate a transient analysis model, and review transient protection measures in select water facilities.