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Why is my water cloudy/grey/milky?

Water discolouration

Why does this happen?

It may be caused by something that’s happened in your local area, such as routine work on the water mains. This usually only affects a small area, so it’s best to see if your neighbours are affected too. If your neighbours have clear water, the cause of the bubbles is likely to be faulty plumbing or pipe work in your home and you will need to contact a plumber.

What should I do if my water is cloudy or milky?

Make sure both your internal and external stop taps are fully opened. Any internal pipe work should be lagged to prevent the warm water pipes heating the cold water pipes, which can also cause cloudy water. When water is run into a glass, the cloudiness should clear from the bottom upwards as the air bubbles rise to the top. Milky or cloudy water doesn’t normally last for long periods. You can also run the cold water tap to help clear the air from your system.

If it doesn't clear or happens often you can speak to one of our online advisers by clicking the pink chat button. If chat is not available you can call us on 0800 085 8033. This line is open 24 hours a day, seven days a week.

 

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