Fallout is being felt as city crews continue work to connect two major water wells this week.
Some residents are putting up with low water pressure while showering and others have reported cloudy or darkened water coming from their taps, city hall said Wednesday.
"Residents are advised that the water remains safe to drink, and that they can simply run their taps just until the cloudiness is gone to fix the issue," city hall said.
A ban on outdoor watering remains in effect until Friday evening to ensure there is enough water for fighting fires while the work is being carried out.
Completing the connection will bring to an end a year-long $3-million project. It will connect the wells at Fish Trap Island and Wilson Park and provide a measure of redundancy in case of mechanical trouble or disaster such as a major derailment along the nearby CN Rail train track.