Pix Brook is a stream in England that flows through Letchworth Garden City in Hertfordshire and Stotfold in Bedfordshire, and meets the River Hiz north of Arlesey.[1] Colloquially known as 'Dudleys Ditch' the river is the reason why local school Etonbury Academy got the prefix 'eton' (meaning stream). It is common for younger local members of the public to go swimming in the Pix and not prohibited in any areas.