What the flush! UKDN research finds Brits flushing fats, needles and hamsters


It’s no secret to anyone that fats, oil and greases – or FOG as they’re known in the industry – take a massive toll on our plumbing and drains. But are we doing anything about it?

UKDN has recently undertaken a survey of the UK’s attitudes towards draining and flushing; the results we’ve found are astounding.

At least one in four people in the UK pour cooking oil down the drain and almost half of people pour sauces, whilst one in five fill their drains with hair and almost 15% of women flush tampons and applicators. Incredibly, 94% of the population asserted they were actually confident with what they should and shouldn’t put down their pipes. Clearly, this isn’t the case!

Young people are the worst offenders. Millennials – who either don’t care or don’t know any better – are six times more likely than the over 55 age group to pour cooking oil down the drain, and 55% of them would flush or pour at least one of the Dirty Dozen – the twelve things no homeowner should let in their pipes.

Recently the discovery of fatbergs, enormous monstrosities of merged wastage, has been a big deal in our headlines and our sewers.  Millennial misconceptions are apparent again here: 20% of them would either ‘not care’ or actually be ‘amused’ if a fatberg were found beneath their street.

Our survey also identified some surprising – and unfortunate – occupants of the sewer labyrinth. While ten percent of respondents admitted to flushing goldfish, three percent admitted to popping another late pet down the potty – the humble hamster. What’s more, thirteen percent flush prescription medicines, and four percent of people admit to disposing illegal drugs, which are both severe hazards for the UK’s marine wildlife.


An innocent hamster that had passed was carelessly flushed down the toilet rather than being buried.

UKDN’s Ross Gylanders commented, “There’s loads of noise about the Whitechapel fatberg, especially given that it’s currently on display at the Museum of London. But what are we actually doing to prevent more fatbergs appearing in our towns and cities?

It’s up to regular people to take responsibility for their own flushing habits. It’s our duty to educate ourselves and make the correct decisions whether to bin or flush our waste products.”

Are you a business or homeowner having trouble with FOG in your plumbing? Check out our drain unblocking service page to find out how UKDN could provide support.

UKDN conducted this survey in collaboration with Toluna, contacting 500 people from a range of demographic backgrounds.