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Water companies are under the spotlight as public concern grows over sewage spills into our rivers and beaches. In the hotseat today is the CEO of the UK's biggest, Thames Water. Sarah Bentley agrees the company can do better and says she's on a mission to turn it around.

Plus how much water does the average UK adult use in a day? And will Fliss pass Deborah's water quiz?

And the things you shouldn't put down the toilet or sink, some of which might surprise you.

Talk to us! You can email the team at GreenMoney@bbc.co.uk or use the hashtag #GreenMoneyShow on Twitter.

Presented by Deborah Meaden and Felicity Hannah.

Produced by Lexy O'Connor and Kath Paddison.
Studio Manager: Hal Haines
Executive Producer: Natasha Johansson
Series Producer: Justin Bones