Water is back on in the Wellington suburb of Karori, but there is an outage in a number of streets in the city's northern suburbs.
In Karori, a water main burst overnight but on Saturday morning Wellington Water said the repair had been completed and service had been restored.
A bulk water tanker was made available to affected Karori residents while the water was out.
However, Wellington Water now said it was investigating reports of no water in some parts of the suburbs of Wilton, Crofton Downs, Wadestown and Northland.
At midday it said it understood the outage was affecting the following streets:
- Cecil Road
- Wadestown Road
- Pembroke Road
- Orangi Kaupapa Road
- Weld Street
Wellington Water said it was investigating the issue.
The capital has had a string of water failings in recent times. The previous incident to this was a burst water main on a major traffic route in the CBD.
Wellington Water chief executive Tonia Haskell stepped down earlier this month in the wake of a scathing report, which called the organisation immature, with inadequate systems and processes and a dysfunctional culture.
The cost of fixing the city's pipes could see other council spending scaled back, Mayor Tory Whanau said earlier this year.
Data released under the Local government Official Information Act in July showed Wainuiomata was the leakiest suburb, with a large number of problems also reported in Trentham, Upper Hutt, Karori and Whitby.
The cost of fixing the water network has been estimated in the several billions of dollars.