United Utilities has apologised after some Cumbrian customers reported supply issues.
The problem was reported just before 6pm and is causing problems in CA12, Thornthwaite area, close to Keswick.
A spokesman for United Utilities said: "You may have noticed that the water is coming out of your tap slower than usual or may have gone off altogether.
"One of our inspectors is looking into this at the moment and as soon as we know what the cause of the problem is we’ll let you know.
"We’re sorry about this and will try and get your taps flowing normally as quickly as we can."
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