People in one part of Liverpool said they had foul smelling and tasting water.
Those living in the Mossley Hill and Childwall areas took to social media on Tuesday and Wednesday to say their water tasted strange and also smelt. Some said it smelt like body odour, while others said like cannabis.
One person in the Penny Lane area asked on Facebook whether other people were experiencing something similar. He said: "Any one else got funny smelling water? From the taps that is."