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Working together to prevent blockages

60% of all sewer flooding in homes is caused by blockages. Many of these blockages could be avoided, just by knowing what you can and can't put down your sinks and toilets.

Follow our advice to help prevent blockages at home. 

In the bathroom

Learn what's safe to flush or drain away in the bathroom.

Toilet

The three Ps

Remember the three Ps: only flush pee, poo and (toilet) paper. Our sewers weren't designed to hold anything else!

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Bin it

Wet wipes, sanitary products, nappies, cotton wool, dental floss, condoms and clumps of hair should all go in the bin.
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Switch it up

There are lots of alternatives to wet wipes available now. A small change of habit could make a big difference to our environment.

There's no such thing as flushable wipes

Many products marketed as ‘flushable’ contain plastic, so won’t break down. Even products with the Fine 2 Flush logo on packaging should never be flushed. Although they’ll disappear when you flush, they won’t completely leave your drains.

Stick to the three Ps and put everything else in the bin. 

Person putting wet wipe in the bin

In the kitchen

Find out how to prevent blockages in your kitchen. 

Plate

Scrape your scraps

Make sure all food leftovers end up in the bin, not down the sink. This includes wet food such as sauce, soup and gravy. Drain covers will help prevent small bits going down the drain, too.
Paper towel

Wipe grease and oil

Use paper towels to wipe grease before washing up or loading the dishwasher. Collect leftover cooking oil in an old jam jar or yoghurt pot. Once it sets, scrape the solid fat out into the bin. 

Recycling

Check your local tip

If you're planning a trip to the tip, check if it has a used cooking oil collection point. Most household waste recycling centres collect leftover oil and can turn it into green biofuels! Check with your local council

Protect your pipes

Never pour leftover cooking oil, fat or grease down your sink. Running your hot water along with a squirt of washing up liquid doesn't stop them from building up in your pipes. Soap can actually harden and stick to other items, adding to the blockage. 

All fat, oil and grease must go in the bin. If you block your pipes, it'll be your responsibility to fix them. 

A mother and child washing up at the sink

Hazardous waste disposal

Medicines, paint and chemicals must be disposed of properly. Never pour them down your sink or toilet. Your local council can help you with safe hazardous waste disposal. 

  • Take chemicals, solvents, engine oil and paint to your local refuse or recycling site
  • Take medicines, tablets, syringes and needles to your pharmacist, hospital or health authority

Fighting fatbergs

We clear around 75,000 blockages from our sewers each year. Many of these are caused by items like wet wipes, sanitary items and cotton pads that can't break down. When flushed down the loo, they combine with cooking fats and oils that have been poured down sinks. Eventually this leads to blocked pipes

These blockages can become bigger and bigger, as more unflushables enter our sewers. We call them fatbergs. 

Fatbergs take up space in pipes and sewers. This can force raw sewage back up drains, plugholes and toilets into homes. To avoid sewer flooding in your home, be careful with what you put down your toilets and sinks. 

Two underground pictures of grey fatbergs in a brick sewer