Life inside the mind-boggling site where all your sewage goes - and the bizarre things that turn up in it
![Life inside the mind-boggling site where all your sewage goes - and the bizarre things that turn up in it](https://i2-prod.walesonline.co.uk/incoming/article29227978.ece/ALTERNATES/s615/0_037Cardiff_waste_water_treatment_works_JPG.jpg)
When you flush the toilet it ends up here (and it's more interesting than we ever realised)
When you flush the toilet it ends up here (and it's more interesting than we ever realised)