An app which helps to track sewage outflows is set to be replaced.

Southern Water’s Beachbuoy app has been used by sea-swimmers, water sports enthusiasts and other waterway users to track sewage outflows and know when it is safe to use bathing sites across Sussex.

Now, the app is being replaced by what is said to be a new and improved platform which will use advanced computer modelling to improve the reliability of the information.

The Rivers and Seas Watch app will launch next week.

Tom Gallaher, open water improvement lead at Southern Water, said: “There are major improvements to the look and feel of the site. Each outfall is colour coded - as before, green indicates no releases in the last 72 hours, amber shows there has been a release up to 72 hours ago, and a red icon highlights a release within the last 24 hours that our modelling shows could impact water quality.”

Users will also be able to sign up for alerts for their local beaches. The new app will use advanced modelling of tides, currents and winds to more reliably model how storm overflows affect bathing sites.

The new app will be launched on November 13.