What causes blocked sewers?

Our sewers are not designed to cope with modern disposable products and as a result these items can cause blockages.

The drains connecting your home to the main sewer are only big enough to carry water, toilet paper and human waste - they are often no wider than 100mm (four inches).

Around 75% of blockages involve disposable items such as wet wipes and this costs British householders millions of pounds annually in plumbing bills.

Find out more about how to avoid blockages in your drains.