Thousands of homes near Whittlesey lose water supply
About 7,000 homes were left without water for hours after a main burst in Cambridgeshire.
Residents near Whittlesey saw supplies cut at around 1200 GMT on Sunday with some not being re-connected until early on Monday morning.
Many complained Anglian Water had not given enough information about the problems.
A spokesman for the company apologised for the length of time the repair had taken.
Nicky Spriggs, who lives in the town, said she had been unable to get through to Anglian Water by telephone.
She said: "It was a joke and I just don't know why they couldn't have put a board up in the town or had a loud hailer just so we'd have known what was going on.
"Lots of people said the same thing and they were all out in town panic-buying bottles of water because we had no idea when it might come back on."
She said a local shopkeeper had to go to a cash-and-carry outlet in Peterborough to bring back more bottled water when his own supply ran out.
The spokesman for Anglian Water said he was "sorry" people were unable to find the information they needed using the company's website or call centre service.
"The burst was complex and took a while to repair because it was to two mains," he said.
"But there is a limit to what we can do when these sorts of things happen, and our priority is to get people back on water as quickly as possible.
"Every incident we have is followed by a session where we look at what went wrong and what we could do differently in the future."