When the water level rises, the floating switch turns on the pump, which grinds waste and ejects it up the waste line. The check valve stops wastewater from flowing back into the basin.

Thames Water has released raw sewage into a chalk stream near St Albans for more than 1,000 hours over the past six weeks. Analysis shows that Britain’s biggest water company has been spilling ...

The River Ver is a 28km waterway running through Hertfordshire and is one of 220 chalk streams in the world, mostly located in the UK - Dan Kitwood/Getty Images Europe ...

Jonah Fisher/BBC Matt Staniek said he believed a sewage-free Windermere was achievable A Defra spokesman said the government "will never look the other way" while water companies "pump record ...