Hydraulic flushing is done annually. (Submitted photo/City of P.A.)

By paNOW Staff

Hydraulic Flushing

City work begins to clean watermains

Sep 3, 2024 | 6:39 AM

Some residents may notice a loss in water pressure or discoloured water at some points over the next few weeks.

The city is set to begin it’s annual hydraulic flushing work to clean watermains. Water system valves are turned off to isolate a section of the watermain and water is then flushed through in one direction at a high speed to produce a scouring action that removes built-up sediment in the water main which ultimately improves water quality.

According to the city’s website, other benefits include: water conservation (less water used to flush the system), improved water colour, improved taste, lower turbidity (cloudiness) and improved chlorine residuals throughout the entire water system.

Additional benefits to the consumer:

• Cost effective preventative maintenance
• Fewer water quality complaints due to water main failures or service leaks
• Helps identify areas of the water distribution system that might need repairs/upgrades
• Checks fire hydrant operation
• Verifies water mapping
• Will improve the water quality within our water distribution system.

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The work will take place in Zone 1 which is essentially everything north of 19th Street. Its expected to last for four to six weeks, weather permitting, Monday to Friday between 7 a.m. and 7 p.m. Residents will be notified via neighbourhood signs 24 hours before flushing starts. Water use should be avoided during the flushing process.

Hydraulic flushing will take place in Zone 1. (Submitted photo/City of P.A.)

The city said many residences will not experience any disruption to their water service, but in some cases there may be loss of water pressure. If discoloured water appears, it should be avoided for preparing food and beverages, brushing teeth or laundry. After the flushing is complete, residents can turn on cold water and let the water run for five to ten minutes to flush water out of service piping and plumbing lines.

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panews@pattisonmedia.com