Annual Uni-Directional Flushing Program

The annual water main flushing program plays an essential role in addressing many issues within the potable water distribution system. Through a series of planned valve openings and closures, our crew is able to move water in a single direction at high velocities. This high velocity scouring of the water main removes sediment, scale and biofilm which greatly improves water quality and lowers chlorine demand.

This action can also improve pipe life by reducing corrosion within the pipe system.  An added benefit is that we are able to find weak sections within the system and locate any closed valves.

The overall flushing program generally runs from April through until the end of June annually.  Residents and businesses may notice dirty water for a short time after the flushing is done.  It is important to know that this discolouration is not a public health concern.  If you find your water is dirty, please simply run your cold water tap until the water runs clear.

The City of Cranbrook apologizes for any inconvenience this work causes and always appreciates the patience of all the residents affected. 

If you have questions, please contact Public Works at 250-489-0218.

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