FREE Primary School Visits to Thames Water Sewage Treatment Works

When the little prized goldfish won at a fairground doesn’t survive, it often gets sucked into the spiraling whirlpool that is the bathroom toilet. That often prompts the question – where does the little fish end up? Followed by, where does poo go?

Explaining the ins and outs of the sewer system to students can be a slippery subject. But, it is an essential part of understanding the environment and how we can all do our bit to keep our waters clean, with scope for learning curriculum material.

Find out more in this short promotional video:


The Earth Trust has teamed up with Thames Water to offer an exciting opportunity for primary school students to learn about waste water. We host site visits to Didcot Sewage Treatment Works, where Thames Water are funding free school trips*. The visits are ideally suited as a practical element for students studying a range of subjects, fitting into the Geography, Science and PHSE curriculum.

The visits are interactive, engaging, educational and fun! Students are challenged to filter a ‘poo soup’ (however, no poo is used in the making of this product!); they also have a tour of the site learning about the processes of a working sewage treatment works.

Students have the opportunity to learn a lot about the water systems on their visit, which includes an overview of the impact people have on the water cycle; a fun explanation of how waste water is treated and where it goes after flushing; to find out about the hidden world of micro-organisms; understand the value of water and energy and how they are used; and of course, find out how we can all save water.

The visits last a whole day (10am-2pm), and take place on Wednesdays and Thursdays.

These curriculum enhancing visits have been tried and tested, and already extremely well received by schools.

*Schools must provide their own transport to and from the site.


“The entire group enjoyed the visit! The children were really enthused by their experience at the sewage treatment site. The staff from the Earth Trust and Thames Water were fantastic with the children, whilst the team challenge that was set really engaged the children and provided a fitting end to the visit. Thank you again for a wonderful experience!”
– Brightwell Primary School

“The children loved the visit and the ‘topic’ choice was a source of conversation back at school and with their parents. The visit fitted perfectly with our recent work on water as part of our Green Flag renewal process and it has also made us all think about what we put down the loo. It was a brilliant learning experience. From a science point of view the experiments we did in the classroom were excellent. We would certainly recommend the visit to any other school and our Year 5 teacher is planning to organise a trip very soon”
– Chilton Primary School

“Please could you pass on my thanks to all involved in taking my son to the Sewage works. He had a fabulous time and told me that he ‘had never learnt so much from a trip!’ He really did learn so much and talked about it nonstop last night. He told me that he is ‘extremely proud’ to be part of the Eco team…”
– Parent of a child from Chilton Primary School

For more information or to book:

Please email Thames Water to make an enquiry or to book. Visits take place only on Wednesdays and Thursdays (10am-2pm).

Thank you to Thames Water for supporting the school site visits to the Didcot Sewage Treatment Works.

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