Blocked drains are one of the most common plumbing problems that homeowners and businesses face. They can cause significant disruptions in your daily activities, from water backing up into sinks and showers to unpleasant odours and even flooding. Whether it’s a minor clog or a major blockage, understanding the causes, signs, and solutions for blocked drains can help you tackle the issue early and prevent further damage.
In this blog, we’ll dive deep into what causes blocked drains, how to spot the signs, and the best ways to fix and prevent them.
What Causes Blocked Drains?
Blocked drains occur when something obstructs the flow of water through the pipes. There are many different reasons why drains get blocked, and identifying the cause is the first step in solving the problem.
Here are some of the most common causes of blocked drains:
- Hair Buildup
One of the most frequent causes of drain blockages in bathrooms is hair. Whether it’s from regular showers, grooming, or even pets, hair can easily build up in your drains, trapping soap, grime, and other debris. Over time, this buildup can cause a significant blockage.
- Grease and Fat
Pouring grease, fat, and cooking oils down the drain can cause serious blockages. When the grease cools, it solidifies inside your pipes, leading to a stubborn clog. This is especially common in kitchen sinks.
- Food Scraps
Food particles from dishes that aren’t properly rinsed off can accumulate in your drains. Over time, this debris can build up and cause a blockage, especially if you have a garbage disposal that isn’t working efficiently.
- Tree Roots
In some cases, tree roots can grow into your pipes, especially if they are old or have cracks. These roots can block the flow of water and even cause significant damage to the pipes.
- Foreign Objects
Sometimes, foreign objects like children’s toys, sanitary items, or cleaning cloths get flushed down the toilet or sink. These items can easily cause blockages, especially if they are not meant to be disposed of in drains.
- Mineral Deposits
Hard water can lead to mineral buildup inside your pipes, narrowing the passage and eventually blocking the drain. This is more common in areas with high levels of calcium and magnesium in the water.
Signs You Have a Blocked Drain
It’s essential to know the signs of a blocked drain so that you can act quickly and avoid larger issues. Here are some of the most obvious signs that you may have a blocked drain:
- Slow Draining Water
If water is draining slowly from your sink, shower, or bathtub, it could indicate a partial blockage in the drain. The buildup of debris is causing the water to flow more slowly than usual.
- Bad Smells
A foul smell coming from your drains is another indication that there may be a blockage. Food particles, grease, and other organic material can decompose in the pipes, creating unpleasant odours.
- Gurgling Sounds
If you hear gurgling sounds coming from your pipes, it could be a sign that air is trapped inside the drain due to a blockage. This often happens when water is trying to push through a clogged pipe but is unable to.
- Water Backing Up
Perhaps the most obvious sign of a blocked drain is water backing up into sinks, tubs, or toilets. If you notice that the water isn’t draining at all, or if it rises back up after being flushed, it’s time to call in a plumber.
- Overflowing Toilets
If you experience frequent toilet overflows, it could be due to a blockage in the drain. This is often accompanied by other signs, like slow drainage or gurgling sounds.
How to Unclog a Blocked Drain
Depending on the severity of the blockage, there are a few different ways to deal with it. Some methods are simple enough to handle on your own, while others may require the expertise of a professional plumber.
- Plunger
A plunger is the most common tool used to clear minor blockages in toilets, sinks, and showers. It works by creating pressure that forces the debris to move through the pipe. Ensure you use the plunger correctly for the best results.
- Drain Snake
A drain snake, also known as a drain auger, is a tool used to reach deeper blockages. It is a long, flexible coil that can be inserted into the drain to break up or remove the obstruction. If a plunger doesn’t work, this may be the next best option.
- Baking Soda and Vinegar
For minor clogs, a natural solution of baking soda and vinegar can help break up debris. Pour half a cup of baking soda down the drain, followed by half a cup of vinegar. Let it sit for about 30 minutes before flushing the drain with hot water.
- Chemical Drain Cleaners
Chemical drain cleaners can sometimes be effective at dissolving blockages caused by grease or organic material. However, these should be used with caution, as they can damage pipes over time and may not be safe for septic systems.
- Professional Plumbing Services
If the blockage is severe, or if DIY methods aren’t working, it’s time to call a professional plumber. They have the tools and expertise to clear even the toughest blockages and inspect the condition of your pipes to prevent future issues.
How to Prevent Blocked Drains
While some blockages are inevitable, there are several steps you can take to minimize the risk of future blockages:
- Avoid Pouring Grease Down the Drain
Never pour cooking oils or grease down your sink. Instead, let the grease cool and dispose of it in the trash. You can also keep a container near the stove to catch any excess fat or oil.
- Use Drain Guards
Install drain guards in your sinks and bathtubs to catch hair, food scraps, and other debris before they go down the drain. This simple step can save you from having to deal with a blockage later.
- Regular Drain Maintenance
Once a month, pour boiling water down your drains to help break up grease or soap scum buildup. You can also use a mixture of baking soda and vinegar to keep your drains clean and fresh.
- Be Mindful of What Goes Down the Drain
Only flush human waste and toilet paper down the toilet. Avoid flushing items like wet wipes, cotton balls, or sanitary products, as these can easily cause blockages.
When to Call a Professional
While minor blockages can be dealt with at home, some drain issues require professional help. If you notice persistent blockages, foul smells, or water backing up into multiple drains, it’s a good idea to call a plumber. They can assess the situation, find the cause of the blockage, and fix it efficiently.
Final Thoughts
Blocked drains are a common yet frustrating issue for homeowners and businesses alike. Recognising the signs early, understanding the causes, and knowing how to deal with the problem can save you a lot of time and money. If you ever find yourself dealing with a serious blockage that you can’t fix, don’t hesitate to call a professional plumber for help. For more information on how to prevent plumbing issues, you can visit the Australian Government’s Smart Approved WaterMark.
