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.