Blocked drains are a common issue in homes and businesses, often leading to slow drainage, bad smells, and even flooding. Understanding the culprits behind drain blockages can help you prevent costly repairs.

Look out for fat, oil, and grease

One of the biggest offenders is fat, oil, and grease, often washed down the sink after cooking. These substances may seem liquid when hot, but they solidify as they cool, sticking to the inside of pipes and causing blockages over time. Always dispose of cooking fats in a container, rather than pouring them down the sink.

What about wet wipes and baby wipes?

Unlike toilet paper, wet wipes do not break down easily in water. Even “flushable” wipes can accumulate in drains, leading to fatbergs. These are huge blockages made of wipes and grease that clog up the system. To prevent this, always bin wet wipes instead of flushing them. Environment Secretary Thérèse Coffey has written to wet wipes producers, asking them to reconsider the use of the word ‘flushable’ on packaging to help prevent blockages.

Hair build-up is a common problem

In bathrooms, hair is a major cause of blocked drains. It binds with soap and other debris, creating clogs in plug holes. Regularly clearing hair from shower drains and sink plugs and using a drain cover can help prevent blockages. A CCTV drain survey Coventry can be useful, and it’s offered by professionals such as https://www.wilkinson-env.co.uk/drainage-services-cctv-surveys-midlands/cctv-drain-surveys/coventry.

Soap scum builds up in pipes

Soap bars contain fat and oils, which combine with minerals in water to create a substance called scum. Over time, this builds up inside pipes, restricting water flow. Switching to liquid soap can help reduce this issue.

Food waste is a major issue

Even with a sink strainer, food particles can slip through and block kitchen drains. Coffee grounds, rice, pasta, and eggshells are particularly problematic.

What about tree roots and leaves?

For outdoor drains, tree roots and leaves are common culprits. Tree roots can penetrate cracked pipes, leading to blockages. Regular garden maintenance can help prevent this.