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WaterSafe approved plumbers are certified by our national accreditation body, with specific training in the UK’s Water Fittings Regulations and Byelaws.
Hiring a WaterSafe approved plumber ensures that all plumbing work meets high standards and protects the quality of drinking water in your home and business, in England, Scotland, Wales, and Northern Ireland.
When planning a plumbing project, you may wish to hire specialised contractors, rather than a fully qualified WaterSafe Plumber.
These Water Support Services contractors include:
These contractors are not approved WaterSafe plumbers, but they are recognised by the water company schemes APLUS, TAPS, WaterMark and WIAPS to carry out specific types of work in compliance with the Water Fittings Regulations and Byelaws.
Groundworkers can work on the supply pipe (the underground pipe) supplying your property, up to the internal stop valve.
Catering Installers can install commercial kitchen equipment.
Point of Use Installers can install cold water chillers connected directly to the mains.
For further information or help, you should contact the relevant water company scheme.
Find a local WaterSafe approved plumber to help with your emergency.
For leaks, burst pipes, or other plumbing emergencies, WaterSafe’s emergency search will give you the contact details of a plumber who can help right away.
If you have no water, very low pressure or concerns about the quality of your water, you should contact your local water company straight away.
You can also find tips and advice in our short films on
WaterSafe’s YouTube channel.
On rare occasions tap water may become discoloured, appear cloudy, or appear to have very small particles in it.
Discolouration can range from a light straw yellow colour to dark brown. It can be caused by a number of things including:
In most cases discoloured water is not harmful and can be cleared by running the first incoming cold water tap (usually in the kitchen) at a trickle until it clears.
Very occasionally water suppliers receive calls about "tiny particles" or "bits" in their tap water. This can be caused by:
For more information, please contact your water supplier.
Please note: If your water is blue, pink, green or any other colour not described above, please do not drink the water or use it for cooking purposes until you have sought advice from your water supplier.
Blue or green looking water is often due to the presence of new copper pipework, either in new houses or where new pipework has been installed in older properties. This is because these new copper pipes are settling in.
To help prevent this from happening, take the following steps:
Blue water can also be caused by poorly installed toilet cisterns, which allow water from the cisterns to siphon back into the internal plumbing.
For information about how to check your toilet cistern please visit the WRAS website.
If your water is blue please do not drink the water or use it for cooking until you have sought advice from your water supplier.
Sometimes water can look milky or cloudy because it contains tiny bubbles of air. Air is always in water, but it can be more obvious after it has travelled through the mains, if there is a burst mains pipe or if a faulty plumbing fitting has been used.
As well as the change in how it looks, you may also notice knocking or banging noises coming from the internal plumbing.
To check if this is the problem, run a glass of water and allow it to stand for a few moments - the cloudiness should clear from bottom to top. To help fix this, you can try running the cold water tap at the first point of entry in to the property (closest to the internal stop tap) on a slow steady flow. While the tap is running, turn the internal stop tap on/off 4-6 times to help release the air from the pipes.
Cloudy water caused by tiny air bubbles in the water is not harmful to health.
If you've tried this but are still concerned, or you'd like more advice you should contact your water supplier.
In this video from Wessex Water, you can learn more about issues with the appearance of your water, as well as tips for how to improve it.