Toilet Roll (S04E02)

This episode explores the impressive daily output of a Manchester factory, which manufactures 700,000 toilet rolls using spruce timber offcuts sourced from Sweden. The process involves pulping the wood and rolling it onto massive 1.2-tonne 'mother reels.' Viewers will also discover how Brighton's advanced water treatment facilities eliminate debris, grease, and bacteria, ensuring clean water is produced in under an hour. The episode highlights a cutting-edge Japanese toilet that enhances hygiene and examines how waterless toilets could revolutionize sanitation for one-third of the global population, along with a look at the evolution of the modern flush toilet.