Have you ever wanted to know where your drinking water really comes from? Come to one of our free open days and find out!

You’ll be able to see behind the scenes at your local water treatment works, and some of our water experts will be there to answer your questions.

You can see how we store, treat, and supply your drinking water. We’ll also share some tips on how you can use water wisely and save money on your bills.

Upcoming open days

We will be hosting more open days in the near future and, once these dates are confirmed, they will be advertised here.

Future open days

Register your interest for future open days

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Previous open days

Arlington Water Treatment Works: September 2025

On Saturday 13 September, we opened the doors of our Arlington Water Treatment Works to customers and stakeholders to see what really happens behind the scenes at our reservoir in East Sussex.


Bray Keleher Water Treatment Works: April 2025

Visitors had three tours to choose from throughout the day on Saturday 26 April. They were able to step inside the control room at the water treatment works, learn how we use technology to find and fix leaks, and see how we filter, treat, and pump drinking water to your homes and businesses.

What to expect