Covid 19 – Our customers in local lockdown areas

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Updated: 18:00 28 September 2020

With the Welsh Government introducing lockdown measures in areas across Wales, we are having to take additional precautions to help keep our colleagues and customers safe in these areas. These areas currently are:

  • Rhondda Cynon Taf County Borough
  • Caerphilly County Borough
  • Merthyr Tydfil County Borough
  • Bridgend County Borough
  • Blaenau Gwent County Borough
  • Newport
  • Llanelli (town)
  • Cardiff
  • Swansea
  • Vale of Glamorgan
  • Torfaen County Borough
  • Neath Port Talbot County Borough

We know that our role – providing water and wastewater services - has never been more important. As essential key workers, you will still see Welsh Water employees working across these areas to maintain services but we will continue to carefully implement social distancing and safety procedures. All of our colleagues will also adhere to rules on wearing face coverings in indoor public areas.

We are temporarily limiting visits to households in these areas to doing emergency or essential works. Examples includes if you have issues with your water supply or flooding in the property. Please get in touch with us as usual and we will advise you what will happen next.

Before we visit, our teams will contact you in advance to confirm that no-one has shown (in the last 48 hours) or is currently showing any COVID-19 symptoms.

We appreciate that this may cause some inconvenience, but we hope you understand that we’re doing this to keep you and your families safe.

We will keep you informed of any other changes through updates on this site and via our social media channels - Facebook & Twitter.

Milky water

Milky water is usually caused by air getting into the system. Tiny air bubbles can form in the water as it’s drawn from the tap giving it the milky or cloudy appearance you are seeing. Water with air bubbles is perfectly safe to drink.

Here’s a glass test you can do to see if the milky appearance is due to air bubbles:

  • Fill a glass of cold water from the tap.
  • See if it clears from the bottom to the top.
  • If it does, this indicates the milkiness is due to air bubbles and that the water is fine to drink.


Air can get into water pipes in various ways – sometimes it can happen when we’ve been working on the water mains in the street. The appearance of air in water can also be caused by internal plumbing, the most common cause is when cold water pipes sit too close to hot water or central heating pipes. Warm water holds less dissolved air than cold water so when the cold water is warmed in the pipe air bubbles will form which results in the water appearing milky. This milky appearance should clear if you flush the tap until the water runs cold and you can prevent it from happening by insulating the pipes to stop the cold water warming up.

If your water doesn’t clear in the glass test above and the milky water is persistent, affecting all your taps and not affecting neighbours, then please contact us for further advice.