$0 Call-Out on All Work 1800 349 338
Leakages

Why Is My Laundry Sink Leaking?

Is your laundry sink leaking, and you’re at a loss as to why? Read our informational guide to know what could be causing it and how to fix it easily and affordably!

Steven Bahbah By Steven Bahbah 6 min read

Is your laundry drain leaking, or is your sink giving you problems? Water spilling out isn’t just a nuisance; it can ruin your floors, stain walls, and foster unhealthy mould and fungus growth.

There are several reasons your sink might be leaking. The washing machine outlet box might be blocked, stopping water from flowing properly. Alternatively, the water line or tap might have a leak, causing the sink to spill over.

Putting Clothes Washing Machine Laundry

So, if you’re wondering, “Why is my laundry sink leaking?” Here are some ways to solve that problem!

Why Is My Laundry Sink Leaking?

A washing machine outlet box is situated above and behind the machine and fosters the supply valves that help the machine run smoothly. It works to shut down the water supply and usually has a standpipe hole for the drain.

The dirty water is pumped out as clothes are washed, and clean water rushes in. The contaminated water is then expelled via a hose connected to the main sewer.

Interestingly, the majority of leaks occur around the washer box. One of the first things to check is whether the hose is connected correctly to the box. If that’s a yes, inspect the hose further to check for any cracks causing the water to seep.

If none of this helps, the leak could be due to a blockage in the hose. So, what precisely is clogging your hose? Some of the most common clogging agents are:

1. Lint

Fuzz from fabrics can sometimes go into the utility sink from the washing machine. The lint tends to clump together when that happens since it is wet. Lint is one of the most common reasons for a drain clog, but it is easy to identify and extract.

2. Hard Water

Hard water is when there’s a high magnesium and calcium content.

Besides being unsafe for consumption, hard water can also cause clogs in your hose. It occurs when it mixes with detergent powder, soap, and other cleaning supplies, creating a thick lump that doesn’t allow water to pass through. Since the water can’t get past it, it bubbles back up and starts to leak.

3. Laundry Detergent

Some detergents solidify when mixed with water, coating the pipe walls, which blocks water flow. It gets worse if lint or hair adheres to the soap, clogging things up further.

4. Scraps From Pockets

Some of us toss clothes in the washer without checking our pockets. We recommend constantly checking any clothes you might want to wash because items like tissues, loose change, and plastic wrappers can block the appliance hose if they enter the washing machine.

When the clothes are washed, the water pressure pushes these odds and ends down the drain via the utility sink. More significant pieces can clog the drain and make it difficult for water to pass through.

Having identified some culprits for clogs, let’s see how we can stop them from happening.

Steps To Avoid A Laundry Sink Blockage

Here are some steps by which you can unclog your drain or prevent a clog from happening:

Laundry Flooding Leaking Laundry Sink

1. Using A Washing Machine Hose Lint Catcher

Placing a lint trap at the tail end of the washer hose will prevent debris from reaching the drain.

2. Using A Hair/Lint Catcher On The Drain

If you don’t have a lint catcher or wish to add an extra layer of protection, a lint catcher on the drain is a good idea. Installing one is easy and can block lint and hair from entering the drain.

3. Correcting Problems Regarding Hard Water

If ignored, hard water can cause blockages and other plumbing issues. A whole-home water softener could be the answer, tackling multiple plumbing concerns in one hit.

Despite these preventive tips, clogs can still occur. In such a case, a licensed plumber is your best bet. They’ll unclog the drain and use special tools to restore your water flow.

A DIY job might save you money, but it can often create problems in the long run. So, a professional will be your best bet for providing top-notch plumbing services and eliminating plumbing issues.

Here are a few ways in which a licensed plumber can help you:

1. Drain Inspection

The plumber will diagnose the problem professionally and determine the clog’s source by thoroughly inspecting the drain.

2. Clog Removal

Chemical drain cleaners are the best way to remove clogs but can be a safety hazard. If you’ve got little to no experience using them, a wrong move could threaten your health, which is why a professional will be able to repair or handle them best.

A plumber usually removes the debris by blasting water at very high pressure into the clogged drain or blocked pipe. As a result, all the collected trash gets ejected out of the drain effectively.

3. Buildup Reduction

A leaky drain may not always be wholly clogged but might be close to a severe drainage problem. If a layer of detergent is lining the pipes and making them slimy, or if grime is stuck to the walls, a plumber can clean it for you. This dramatically reduces the odds of the problem recurring in the future.

Fixing The Leak In Your Laundry Sink

Though clogging is one of the most common reasons for a laundry sink leak, other issues can be. Old pipes that have reached their life expectancy, a main sewer line blockage, a malfunctioning water valve, and even low water pressure can cause a leak.

In some cases, you may need to contact the council since water pressure and sewer line problems are out of the control of regular people. On the other hand, problems with the machine will have to be handled by the manufacturer. However, for plumbing issues, a licensed professional is needed to provide quality plumbing service and replace or repair your drainage or pipes. Aside from fast and efficient services, they have the tools and methodology to work on your plumbing problems efficiently.

That’s a wrap on our guide. Hopefully, this helps you figure out what’s causing your laundry sink to leak. Take care and stay safe!

Photo of Steven Bahbah
Written by

Steven Bahbah

Steven Bahbah is the founder and CEO of Fixed Today Plumbing, one of Sydney’s most trusted 24/7 emergency plumbing companies. With more than a decade of hands-on experience across the trade, Steven built Fixed Today on a simple promise: licensed, fully-equipped plumbers who solve the problem the first time and don’t leave until the customer is 100% satisfied. His team is qualified under NSW regulations and services homes and businesses right across Sydney — from the Inner West and Eastern Suburbs to the Hills District, North Shore, Western Sydney and the Sutherland Shire. When Steven isn’t leading the team on the tools, he shares practical, no-nonsense plumbing advice to help Sydney homeowners avoid costly repairs and keep their homes running smoothly.

Find them on their website: Fixed Today, or on Facebook and LinkedIn.

Keep reading

Related articles

Hand-picked guides and fixes related to what you just read.

The Hidden Reasons Why Your Shower Drain Smells
Steven Bahbah

Do you have a stinky shower drain and can’t figure out what’s causing it? Read this informational guide to learn about the hidden reasons behind it and how you can fix it!

What Are The Dangers Of A Gas Leak?
Steven Bahbah

Confused about what sort of dangers a gas leak poses? Ensure you understand the risk, and the steps you must take when you face a gas leak!

How To Fix A Leaking Garbage Disposal
Steven Bahbah

Have you noticed a leakage coming from your garbage disposal unit? Don’t worry! Read our guide to learn how to identify what is causing the leak, and the best and most simple solutions for repair!