Visitors will get a chance to step back in time and explore how drinking water has been supplied for the past 125 years.
Twyford Waterworks will be holding its last open day of 2025 on Sunday, October 5.
The open day invites visitors to enjoy a day out at arguably the best-preserved Edwardian pumping station in the country.
Located on the edge of the South Downs, Twyford Waterworks is a Scheduled Ancient Monument situated within five acres of carefully managed chalk downland, which supports a diverse range of wildlife.
This year it is celebrating 125 years of water supply to the local area. The wells were dug in 1898, the reservoir completed in 1899, and in 1900 the Waterworks began pumping fresh, clean water – a process Southern Water continues today using modern technology.
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Throughout the day, much of the site will be brought to life with demonstrations, displays, and explanations from volunteers.
A highlight will be the Hathorn Davey triple expansion steam pumping engine running: see the boilers being stoked and watch this majestic machine in operation, evoking the sights, sounds and smells of the Edwardian era.
Also running at various times will be the Ruston diesel pumping engines, now 90 years ol , and there will be volunteers on hand to explain how everything works.
Visitors can also see the 1895 Crossley gas engine in action, alongside several smaller pumps that keep the water flowing.
No visit would be complete without exploring the Lime Kilns and Water Softening Works where original water-powered machinery still operates.
Twyford Waterworks isn’t just about industrial history – it’s also a haven for wildlife. Its nature trail winds through rare unimproved chalk grassland, past a pond and hide, offering the chance to spot birds, insects and wildflowers that thrive in this rare habitat.
Its Tea Room will be serving homemade cakes, drinks and light refreshments.
A BBQ will also be available on site. Volunteers – many of whom help restore and operate the machinery – will be on hand throughout the day to answer questions and share stories.
Matthew Feldwick, from the waterworks, said: "Whether you're a returning visitor or here for the first time, you'll receive a warm welcome."
The Autumn Rally takes place on Sunday, October 5 from 11am until 4pm. . For further information, visit twyfordwaterworks.co.uk
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