Manx Utilities is asking people in Douglas and Braddan to run their taps if their water is discoloured this morning.
On Facebook, the organisation says water supplies were cut off in Vicarage Road, Farmhill, the Isle of Man Business Park, Anagh Coar and Springham Park last night.
As a result, it says people may see discoloured water this morning after supplies were restored.
Its advice is to run downstairs or outside taps until it clears.
Council announces final dates for garden waste collection
Manx Utilities hopes sewer cleaning means end of odour problems
What's being done to tackle crash blackspots?
New TT schedule will be reviewed on yearly basis
No successful driving theory test appeals in past 10 years
Steam Packet announces tomorrow morning's sailings will go on time
Firefighter to raise money by wearing full gear in fitness competition