Cloudy / discoloured water

We go to great lengths to make sure your drinking water is supplied to the very highest standards. However, on rare occasions it may appear discoloured or cloudy.

Discoloured water

The most common cause of a change in colour is a change in the flow or pressure within the pipes - for example as a result of a burst main. The change in pressure can dislodge tiny deposits such as iron or manganese, which may turn the water brown for a short period. These deposits are usually nothing to worry about, but we understand you may not want to drink the water until it's returned to normal.

Cloudy / milky water

If your water appears milky or has lots of bubbles in it this may be caused by changes on our network such as bursts or emergency repair work. If you fill a glass of water and it clears from the bottom upwards then this means your water is a little more aerated than usual.

The issue will normally resolve itself, but if it’s been ongoing for a little while and you’re beginning to worry, please get in touch on the number below.

What to do if your water is cloudy or discoloured:


1. Check our live 'In your area' map

The first thing to do is check our live map to see if there are any incidents or other activity going on in your area.

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2. Run your cold kitchen tap

The best way to clear discoloured or cloudy water is to run the tap closest to your internal stop tap (normally your kitchen tap) on a really steady flow, about the thickness of a pencil, until it clears. This can take up to 20 minutes. Please don’t be tempted to give the tap a good blast as that can make the problem worse.

3. Get in touch

If you’ve tried running your tap steadily for 20 minutes and your water is still discoloured, contact our team on 0333 000 0002 and we’ll investigate.

Lines are open Monday to Friday 8am to 7pm, and Saturday's between 8am and 1pm.

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