Burst water main affecting Llanrumney/St Mellons & surrounding areas of Cardiff, CF3

exclamation icon

Updated: 13:30 04 September 2025

Our teams have worked overnight to fix the burst water main and supply bottled water to over 700 vulnerable customers. The burst water main has now been fixed, and water supplies are now restored due to rezoning and tankering operations.

We are in the process of re-filling the network but this needs to be done carefully and slowly to avoid any further bursts. Some customers may still experience intermittent supply, low pressure or discoloured water as things return to normal. The bottled water stations will remain open this morning.

Bottled water stations are available at:

  • Eastern Leisure Centre, Llanrumney Avenue, CF3 4DN
  • Tesco Supermarket, St Mellons, CF3 0EF

We’d like to apologise for the inconvenience this has caused customers.

More information is available here.

Get Water Fit

It's easy to save water, energy and money with Get Water Fit

Are you interested in finding out how much water you use?

Our handy Get Water Fit calculator from our partners Save Water Save Money allows you to find out how much water you use every day and also how that may affect your energy bills.

Simply sign in and enter your postcode and within a few minutes you can create a personalised dashboard for your home, with ideas on how to save water, energy and money.

Signing up is just the first step of your journey, once you are in you'll be able to order your free water-saving kit and revisit the calculator to see how your water consumption can change over time.

Got your products but not sure how to install, take a look at our videos below.

'How to' videos

Want more tips on saving water in the home?

We use lots of water in our homes, but there are really easy ways that you can save…

Click here to sign up to Get Water Fit