Why does it happen?

Black, brown, orange or yellow-looking water is usually the result of a sudden change in direction of water within iron mains, which can disturb iron and manganese particles that settle in the bottom of the water pipes.

It can occur when work is taking place in the area, for example: if repairs are being carried out on a burst main, the fire service are testing their water hydrants, or water is being moved to supply a different area.

In most cases discoloured water is not harmful and doesn't usually last for a long period of time.

The only way to clear it is to let it work its way through the system. Running your tap will help to flush the discoloured water through.

Can I use my water if it is discoloured?

If your water is discoloured:

• Don't use a dishwasher, as the particles may cause a blockage
  
  
• Don't use your washing machine either, as the particles may stain your washing

In all of these cases, although the water may look unappealing, there is no risk to your health. If the problem carries on, or if you do have any concerns, please contact us.

We are continually reviewing the condition of all of our water mains and pipes and carry out routine flushing to remove any particles, which may discolour the water.

We aim to supply all of our customers with high-quality water.

Occasionally however, the water can look cloudy or milky white in colour. This is probably because air has gotten into the water supply.

Be reassured that air is harmless, so the water is completely safe to drink.

Air can get into the supply through a number of ways. It may occur if there’s been a burst water main in your area, or if we’ve been carrying out maintenance work. It could also be caused by your internal plumbing.

To check if there is air in your supply, draw off a glass of water and let it stand for a few minutes. The glass should clear from the bottom upwards. This clears because the air bubbles start rising to the surface.

To clear the aeration, simply run your kitchen tap, and then adjust your inside stop tap at the same time.

Do this by slowly opening and closing the stop tap a couple of times to release any trapped air in the internal plumbing.

Most internal household water pipes are made from copper.

In very new buildings, or buildings with new plumbing, small quantities of copper can dissolve into the water, until a natural, protective layer builds up on the inside of the pipes.

If water has stood in contact with copper pipes for a long time, it can develop a blue tint, which is especially noticeable in white baths and sinks.

Older internal plumbing made of copper can also cause blue discolouration and may need checking or replacing by a plumber.

If it continues, then you need to contact the house builder or an approved plumber.

If you are still concerned, please contact us.

Blue-looking water can also be a result of back syphonage from the toilet cistern.  The use of blue loo blocks and depressorisation can result in the appearance of blue water from taps in the property.

If you experience this, please contact us.