Water main cleaning starts September 13

Minor water interruptions mean fresher water for Guelph

The City is cleaning water mains in selected areas of Guelph starting Monday, September 13. Cleaning is done overnight, between 9 p.m. and 6 a.m., to reduce disruptions.

The City expects to finish water main cleaning by September 24.

What to expect

  • Businesses in areas where water mains are being cleaned will get a letter at least two weeks before scheduled cleaning, and a reminder by phone a few days before.
  • Residents will get a delivered notice about a week before scheduled cleaning, and a door-hanger reminder notice (where access is permitted) 36-48 hours before.
  • Tap water should not be used during cleaning. Store tap water in pots, jugs or your bathtub before cleaning starts.
  • Water service may be interrupted, water pressure may be low or water may appear discoloured (brown) during cleaning.
  • No chemicals are used in water main cleaning. Special scrubbers and water pressure are used to clean water mains.

Drinking small amounts of discoloured water is unlikely to cause health issues, however, the City recommends waiting until water runs clear before drinking it. To clear discoloured water, run a cold water tap for five to fifteen minutes.

Why we clean water mains

Water main cleaning ensures you get the freshest water possible from your tap. Cleaning removes the buildup of natural minerals including iron and manganese and reduces the chance that water will be discoloured.


Water main and sewer cleaning

For more information

Water Services
[email protected]elph.ca