Recurring drain blockages are a common household hassle that can disrupt daily routines and lead to expensive repairs if left unchecked. Whether this is a slow-draining sink, a clogged shower, or a backed-up toilet, these issues can often stem from everyday habits and underlying plumbing problems.
Understanding the root causes of these blockages and implementing effective solutions can save time, money, and frustration. Let’s explore the common causes of drain blockages, quick fixes, long-term prevention strategies, and when to seek professional help.
What Causes Blocked Drains?
Blocked drains can disrupt daily activities and, if not addressed, lead to costly drain repairs. Understanding the root causes can help prevent recurring blockages and maintain a smooth-running drainage system. Below are the most common causes of drain blockages:
Grease, Fat, & Oil Build-Up
Most people would not think that these daily encounters would be the cause of their blocked drain. However, although grease, fat, and oil can go down the drain smoothly, its actually one of the most common causes of drain blockages due to the residue hardening once cooled down, therefore, it sticks to the walls of the pipes in a solidified texture.
Hair and Soap Residue
Very commonly, when you take a shower, strands of hair will naturally fall out and enter the drain. When this is mixed with soap, shampoo, etc. it can actually form more of a clump of hair, and as a result, block the drain. Over months or years, these accumulations form solid blockages and prevent proper drainage.
Flushing Non-Degradable Items
Toilets and drains are designed to handle only water, human waste, and toilet paper. If you are using items such as wet wipes, sanitary products, cotton swabs, nappies, paper towels and tissues, it’s important to know that these items do not dissolve easily, and should not be flushed, as this accumulates in the pipes/drain and causes blockages.
Food Scraps
Another very common drain blockage is food scraps. Disposing of food scraps, especially starchy foods (rice, pasta, potatoes), expands in water and gets stuck in pipes. When food scraps also come into contact with grease or oil, they solidify, making it even harder for water to pass through.
Hard Water & Mineral Deposits
Hard water contains high levels of minerals like calcium and magnesium. Over time, these minerals accumulate inside pipes, forming limescale deposits that reduce water flow. This is a common problem in areas with hard water and can make existing blockages worse.
Quick Fixes For Minor Drain Clogs
Boiling Water (For Grease & Soap Buildup)
How It Works:
- Boiling water helps break down grease, soap scum, and minor blockages.
- Best for metal pipes (avoid using on PVC pipes as excessive heat may damage them).
How to Use:
- Boil a pot of water.
- Slowly pour it down the drain in two to three stages, allowing it to work between pours.
- Run hot tap water to flush any remaining debris.
Plunger (For Stubborn Clogs in Sinks & Toilets)
How It Works:
- Creates suction and pressure to dislodge blockages.
- Works well for hair, soap, or food-related clogs.
How to Use:
- Fill the sink or tub with enough water to cover the plunger head.
- Position the plunger over the drain and press down firmly.
- Pump vigorously for 20–30 seconds.
- Lift the plunger quickly to break the suction.
- Repeat if necessary, then flush with hot water.
Drain Snake or Wire Hanger (For Hair & Debris Removal)
How It Works:
- Physically removes hair, food scraps, and gunk stuck in the pipes.
- A drain snake is a flexible tool designed for deep blockages.
How to Use:
- Insert a drain snake or straightened wire hanger with a hook at the end.
- Push it down the drain and twist to catch hair and debris.
- Pull it out and dispose of the waste.
- Rinse with hot water.
Preventative Measures To Avoid Recurring Blockages
Recurring drain blockages can be frustrating and costly to fix. The good news is that with regular maintenance and smart habits, you can keep your drains clear and avoid unnecessary drainage emergencies. Below are some key preventative measures to help you maintain a smooth-flowing drainage system.
Be Mindful Of What Goes Down The Drain
Many blockages occur due to improper waste disposal. Here is what to avoid:
Kitchen Sinks
Make sure to never pour grease, fat, or oil down the sink drain and instead, collect this waste and dispose of it in a bin. Also, ensure to avoid washing down coffee grounds, eggshells, pasta, rice and fibrous vegetables down the sink, as this accumulates in the drains and suppresses water from flowing through.
Bathroom Sinks, Showers & Toilets
To avoid blockages in bathroom drains, it’s essential to prevent hair, soap scum, and toothpaste buildup. Using drain screens in sinks, showers, and bathtubs will catch these particles before they enter the pipes, significantly reducing the risk of clogs. Additionally, never flush cotton swabs, dental floss, or excess soap residue down the drain, as these items do not break down and can lead to stubborn blockages over time. By being mindful of what goes down your bathroom drains, you can prevent recurring issues and keep your drainage system flowing smoothly.
When To Call Total Drainage Services
You should call Total Drainage Services if you are experiencing persistent drain blockages that DIY methods can’t resolve, or if you notice multiple drains are clogged at once. We offer 24/7 emergency drain unblocking, CCTV surveys to detect blockages, and resin lining for damaged pipes. Additionally, if you experience issues like foul odors, slow drainage, or visible water damage, it’s time to contact our professionals to prevent further damage. You can reach them anytime on 0800 015 8899. For more information, visit Total Drainage Services.
