Anything touched by tap water in the Dunedin city centre was either turned off or thrown out yesterday, creating financial woes estimated to be in the hundreds of thousands of dollars among many restaurants, cafes and bars.
Vault 21 in the Octagon was forced to close and another restaurant was forced to throw out all the food it had prepared using the contaminated water.
Craic Irish Tavern and Thistle Cafe and Bar owner Claire Grenfell said premises serving coffee or post-mix soft drinks were forced to stop serving because of their use of tap water.
''You need to boil the water for a minute to fully sterilise it.
''Of course, a coffee machine is a bit like a Zip - it just holds the water at a hot temperature, not boiling temperature.''