Manx Utilities says it's spending half a million pounds replacing two and a half miles of water mains in the south of the Island.
The main runs from Ballaglonney Farm to Ballaquinney Farm and will take 30 weeks to replace.
The organisation says the existing main was originally laid in 1967 and delivers water to more than 3,800 people.
Manx Utilities says the work may occasionally affect some roads but residents will keep access to their properties.
Mum thanks firefighters after daughter cut from trolley
Pandemic gowns company linked to Island baroness owes £188 million
Specialists needed to work out windfarm rates
Cricket club awarded £50k for nets
DoI says it doesn't have info about requests to revoke tickets
Hundreds of elective surgeries cancelled due to TT
No concrete plans to change income tax thresholds
Fire service's advice for how to keep safe on Bonfire Night