The Environment Secretary Therese Coffey has told Sky News the repeated release of illegal sewage outflows is a "scandal" as she signals that customers may need to be prepared to pay more for an improved system.

Our economics and data editor Ed Conway has investigated the scale of the sewage crisis.

On the Sky News Daily, Leah Boleto talks to Ed about his findings, which show that - far from being a failure of the system - raw sewage is released into Britain's waterways by design.

Senior podcast producer: Annie Joyce
Interviews producer: Melissa Tutesigensi
Promotion producer: Jada-Kai Meosa John
Editor: Wendy Parker