As much as 900 million litres of clean drinking water is wasted daily which is equivalent to filling Wembley stadium or supplying water to another one million people a week.

This is according to a new survey from Affinity Water, a water-only supplier, which has teamed up with property expert and TV presenter Sarah Beeny to encourage the nation to identify leaks within the home and understand when it’s time to call in the experts to fix them.

The survey found that over two-thirds (68%) of the nation has had a leak in their home, but the majority (55%) don’t know how to check their toilet or tanks for leaks, which are responsible for the biggest water loss.

One in five people leave home leaks for four weeks or more before getting them fixed. Almost one-third (32%) of those with a leak have put off fixing it due to how much they think it will cost to repair them, while 33% had other home repair jobs they deemed more critical, and 28% didn’t know a reliable plumber to ask for help.

A separate independent poll of 250 plumbers found the top three home leaks plumbers tend to are pipes, toilets, and sink taps, and they fix 192 home leaks each on average, every year.

The survey revealed that 93% of tradespeople agree that often a leak will get worse over time, while 83% of homeowners think leaks will just go away.

Seven in 10 plumbers say people who don’t contact them about a leak right away don’t think it’s that bad – and then it gets worse.

As many as 88% of plumbers have had to repair a leak which a customer has tried to repair themselves but couldn’t. 83% of those said the customer made the leak worse.

WaterWise data indicates a leak within the home could cost each household an extra £308.78 a year.