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.
What you'll need to know
As our tours are at working water treatment facilities, for your health and safety and security of the site, please note:
- Due to stairs, regrettably the tour is not suitable for people with impaired mobility
- Children under the age of 14 cannot be permitted
- You must wear flat, toe covered shoes
- You'll need to bring photographic ID with you
- Photography is not permitted
How to book your place
The tours are free but entry is strictly by ticket only.
Places are allocated on a first come, first served basis. You will be sent a confirmation email to verify the tour you are registered for.
Upcoming open days
Arlington Water Treatment Works
Visit Arlington Water Treatment Works, The Fishing Lodge, Arlington Reservoir, Arlington, Polegate, BN26 6TF on Friday 12 June and Saturday 13 June 2026.
Each tour will last for two and a half hours and there'll be a maximum of 25 people per tour at the following times:
| Tour Date | Time |
|---|---|
| Friday 12 June - Tour 1 | 09:30am - 12pm - fully booked |
| Friday 12 June - Tour 2 | 1:30pm - 4pm - fully booked |
| Saturday 13 June - Tour 1 | 09:30am - 12pm - fully booked |
| Saturday 13 June - Tour 2 | 1:30pm - 4pm - fully booked |
Please note:
- Public transport options to our site are limited, however free car parking is available directly on site.
- These tours will involve a coach ride.
To book your place on the tour, please use these links below:
Friday, 12 June, 2026
Tour 2 - 1:30pm - 4pm - fully booked
Saturday, 13 June, 2026
Tour 1 - 9:30am - 12pm - fully booked
Saturday, 13 June, 2026
Tour 2 - 1:30pm - 4pm - fully booked
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Future open days
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.