Blocked drains are one of the most common – and frustrating – plumbing problems for homeowners and businesses alike. They can cause unpleasant odours, slow drainage, and even flooding if left unchecked. But most blockages are preventable with a few simple habits. Here are the top five causes of blocked drains and how you can avoid them:
1. Fat, Oil and Grease (FOG)
Cooking fats, oils, and grease may go down the sink as a liquid, but they solidify as they cool, sticking to the inside of your pipes and forming blockages.
Prevention tip: Pour fats and oils into a container and dispose of them in the bin. Wipe greasy pans with kitchen roll before washing.
2. Hair Build-up
Hair is a major cause of bathroom drain blockages, especially in showers and sinks. Over time, it combines with soap and debris, creating stubborn clogs.
Prevention tip: Use a drain guard or hair trap and clean it regularly.
3. Wet Wipes and Hygiene Products
Wet wipes, sanitary products, and cotton buds don’t break down like toilet paper and can quickly cause blockages when flushed.
Prevention tip: Only flush the three Ps – pee, poo, and paper. Everything else should go in the bin.
4. Food Waste
Even with a waste disposal unit, certain food scraps like rice, pasta, and coffee grounds can expand or clump in the drain, causing problems.
Prevention tip: Scrape plates thoroughly before washing and avoid tipping food waste down the sink.
5. Tree Roots
In outdoor drains, tree roots can break into pipe joints and cause serious blockages.
Prevention tip: Have older drains inspected regularly. If trees are near drainage lines, consider a CCTV drain survey to spot issues early.
Need Help with a Blocked Drain?
If you’re dealing with recurring drain issues or want to prevent problems before they start, get in touch with The Drainage Specialists. We offer fast, reliable service across North Wales—24/7.