Blocked drains are a common household problem across the UK, often leading to unpleasant smells, slow drainage, and costly repairs if left untreated. Understanding the causes can help prevent issues before they start.
1. Fat, oil, and grease build-up
One of the biggest culprits is cooking waste poured down the sink. When fat, oil, and grease cool, they solidify inside the pipes, forming sticky blockages that trap food particles. Over time, this can cause clogs and even so-called fatbergs.
2. Hair and soap residue
Bathroom drains are frequently blocked by hair and soap scum, which cling together and restrict the water flow. Regularly cleaning plugholes or using drain guards can help keep things clear.
3. Tree roots and structural damage
Outside the home, tree roots can infiltrate the underground pipes through tiny cracks or joints, causing obstructions. Ageing or damaged drainage systems are particularly vulnerable and may require a CCTV drain survey to diagnose the issue.
If you require a CCTV drain survey Northampton, professionals such as wilkinson-env.co.uk/drainage-services-cctv-surveys-midlands/cctv-drain-surveys/northampton/ can help. A blockage thought to be around 100 tonnes has been cleared from a London sewer recently.
4. Foreign objects and household waste
Items such as wet wipes, cotton buds, sanitary products, and nappies should never be flushed down the toilet. Even ‘flushable’ wipes don’t break down properly. This can lead to blockages in pipes and sewers.
By being mindful of what goes down the drain and scheduling maintenance, homeowners can prevent most blockages and keep their drainage systems flowing freely.