Quick summary:
Blocked shower drains are usually caused by hair, soap scum, and debris. You can try simple DIY fixes like plunging or natural cleaners first; we’ll show you effective methods below. If these don’t work, it’s best to call a professional to get the situation properly sorted.
Intro:
A blocked shower drain can ruin your morning, making you feel like the drain may overflow the shower floor with unknown debris stuck halfway down the pipe. It’s not a pleasant experience, but the good news is, in many cases, you may be able to apply a simple fix at home.
Warning:
Please be aware that without looking at your shower, we don’t know the full story of what’s happening underneath. The ideas below are generally safe; however, it’s important to take safety precautions with hot water. It’s also vital to handle any chemicals as per the labels and check that the materials used in your shower, pipes, and drainage system are suitable for use.
Some chemicals are corrosive and can damage pipes, certain finishes, and plastics. It’s also essential to follow any instructions provided by the manufacturers for mixing chemicals. Wear protective gear and use rubber gloves to avoid getting your hands dirty.
Signs your drain is blocked – or almost blocked
Apart from the obvious, watch for water draining slowly, pooling around your feet, or making strange gurgling sounds after you shower. You might also notice unpleasant odours rising from the drain. These are common signs of a blockage forming, which is often caused by hair, soap scum, or other debris building up over time.
When to try unblocking a shower drain at home
If water is still draining, even if slowly, it’s usually a good time to step in. Early blockages often start small and are easier to manage before they become full clogs. Acting early can help you avoid bigger issues, minimise mess or odour, and potentially resolve the problem without needing professional assistance.
When it may not be a good idea to DIY it
If the water stops draining completely, the smell is severe, or previous attempts haven’t worked, it’s time to stop. DIY methods can worsen the problem of deeper blockages, structural issues, or older pipes. In these cases, a licensed plumber is your safest and most effective next step.
What might be stuck in your clogged shower drain?
Shower drains often collect a surprising mix of everyday debris. The most common culprits are clumps of hair, soap scum, and conditioner or shampoo residue, which can build up over time. Small objects like razor caps, toothpaste tube lids, or bits of plastic from personal care products may also get lodged in the pipe.
In some cases, debris from outside, like dirt, sand, or even bugs, can make their way into the drain, especially if the bathroom is connected to older or shared plumbing. These materials can gradually restrict water flow, leading to slow drainage or full blockages.
Potential underlying issues that may be causing a clogged drain
If shower drain blockages keep coming back, there may be a deeper issue. Tree roots, damaged, misaligned or broken pipes, and long-term buildup within the plumbing system can restrict flow well beyond the drain itself. In older homes, narrow or corroded pipes can also slow drainage.
These problems often require inspection and repair by a licensed plumber or drain specialist, as DIY methods won’t reach or resolve the root cause of recurring blockages.
DIY methods to fix a blocked shower drain
From harmless clogs to stubborn blockages, there are several methods you can try to remedy a blocked drain before calling in a plumber. Here’s a rundown of the most effective approaches, from the simplest to those requiring a bit more effort.
1. Remove the drain cover and check
Effort level: Moderate
Start by removing the drain cover; it may simply lift off or require a screwdriver. Wear gloves, and use a torch or phone light to look inside. Hair, soap scum, and bits of plastic often gather just below the surface. If visible, carefully pull the blockage out by hand or with tweezers. It’s not glamorous, but this simple step often clears the drain entirely. Once cleared, rinse the area with hot water. This is one of the most direct and effective ways to deal with surface-level clogs without needing tools or chemicals.
2. Flush with hot water
Effort level: Minimal (caution advised)
Boil a kettle and slowly pour the hot water down the drain in stages, allowing a few seconds between each pour. This helps to loosen and dissolve grease, soap scum, and light buildup. It’s safe for all plumbing and a good first step, especially when used after physical removal.
3. Use vinegar and baking soda
Effort level: Easy
Pour ½ cup of baking soda into the drain, followed by 1 cup of white vinegar. Cover the drain with a plug or cloth to keep the reaction contained. Let it fizz for 15–30 minutes. Follow with hot water. The fizzy chemical reaction (carbon dioxide bubbles) help to loosen grime, soap scum, and mild blockages. It’s effective for breaking down organic matter and is gentle on your pipes.
4. Try salt and baking soda
Effort level: Easy
Mix ½ cups of table salt with ½ cups of baking soda and pour into the drain. If possible, leave it overnight, then flush with boiling water in the morning. The coarse salt helps scrub the pipe walls, while the baking soda neutralises odours and helps break up grime. Salt and baking soda don’t react chemically, but the salt acts as a gentle abrasive. This combo can help scrub inside the pipes and absorb moisture, loosening buildup over time, especially if left overnight.
5. Use an enzyme-based drain cleaner (natural drain cleaner)
Effort level: Easy
Enzyme cleaners use natural bacteria and enzymes like protease and lipase to break down hair, grease and starch to break down soap and organic matter to solve shower drain clogs. They’re non-corrosive, environmentally friendly, biodegradable, and safe for frequent use. However, they work gradually, so they’re best for regular maintenance or mild clogs rather than immediate fixes. Avoid using them alongside chemical cleaners, which can kill the enzymes.
6. Plunge the drain
Effort level: Moderate
Use a cup plunger (flat-bottomed, not a toilet plunger) over the drain opening. Make sure there’s enough water to cover the plunger base, and seal off any overflow openings. Plunge firmly to create suction and repeatedly for about 30 seconds. The suction can loosen and dislodge debris further down the pipe, allowing proper water flow again.
Tip: Never do this after using hot water or chemicals in a drain, as it can splash up and onto you.
7. Use a hook or a wire coat hanger
Effort level: Moderate
If you are still looking for ways of unblocking shower drains, straighten a metal coat hanger (unless you have a metal hook that size) and bend one end into a small hook. Remove the shower drain cover and insert it gently into the drain and twist to catch hair or trapped debris. Pull out slowly. Be careful not to scratch the pipe or push the blockage further down. Rinse with hot water afterwards.
8. Use a plastic drain snake (plumber’s snake) or barbed tool
Effort level: Moderate
A plastic drain snake or barbed cleaning tool is a simple, inexpensive way to remove hair and debris lodged just below the surface. Insert the flexible strip into the drain, twist gently, and pull it out to catch buildup. It’s especially effective for bathroom drains, and unlike metal coat hangers, it won’t scratch your pipes. Clean and rinse the drain afterwards to flush away any loosened residue.
9. Use borax as a natural drain cleaner
Effort level: Easy
Borax is a natural mineral compound with mild cleaning and deodorising properties. To use, pour half a cup of borax into the drain, followed by a cup of vinegar or hot water. Let it sit for 15 to 30 minutes before flushing with hot water to help break down soap scum and grime.
Tip: Borax is safe for most pipes and septic systems when used occasionally.
10. Consider a chemical drain cleaner (with caution)
Effort level: High
Commercial drain cleaners (like Drano or Mr Muscle) contain corrosive substances such as sodium hydroxide or bleach. These can break down organic material but may damage old or PVC pipes with repeated use. Always wear gloves and ventilate the area well.
⚠️ Note: Never mix harsh chemicals with other cleaners or enzyme products, and avoid use if water isn’t draining at all, as the chemicals can remain trapped, creating a hazard. Corrosive cleaners may damage seals or pipe coatings over time and are harmful to the environment. Use only as a last resort.
Still stuck? Time to get a professional plumber in
If home remedies and DIY tools don’t clear your shower drain, it’s time to call in professional help. Persistent blockages may indicate deeper plumbing issues or stubborn clogs that require specialised equipment.
A licensed plumber can accurately diagnose the problem, prevent damage to your pipes, and ensure a long-lasting fix, saving you time, hassle, and potential costly repairs down the line. Don’t ignore ongoing drainage issues, as they can lead to water damage or mould growth.
How a professional will address a blocked shower drain
A professional plumber will start by inspecting your drain using specialised tools, such as a plumbing camera, to identify the exact cause and location of the blockage. They may then use motorised drain snakes or hydro-jetting equipment to safely and effectively remove stubborn clogs.
Professionals also check for underlying issues like pipe damage or buildup that could cause future blockages, offering advice or repairs to keep your plumbing running smoothly. Their expertise ensures a thorough, lasting solution without damaging your pipes or fixtures.
Preventative methods to avoid future shower drain blockages
Keeping your shower drain clear starts with simple, consistent habits. Use a drain cover or hair catcher to stop hair, soap chunks, and plastic from washing down the drain. Clean the cover regularly to prevent buildup. Be mindful not to drop small items like bottle caps, razor covers, or packaging tabs that can easily lodge in pipes.
As part of general plumbing maintenance, flush the drain with hot water weekly and consider using an enzyme cleaner monthly to break down residue before it becomes a problem. Staying on top of minor debris can help you avoid clogs, slow drainage, and costly plumbing repairs down the line.
Need a professional plumber to sort out your blocked shower drain?
If you need reliable help with a stubborn shower drain in the Geelong or West Melbourne area, call Simon at Cre8flow on 0439 757 959 – your local, friendly drain specialist available 24/7. Simon offers affordable, personalised service, so you get the service and results you deserve.
Using advanced CCTV inspection and powerful high-pressure water jetting, he quickly locates and clears blockages for a thorough, lasting fix. Whether it’s a minor clog or a tough buildup, Simon is ready to provide fast, expert assistance whenever you need it. Don’t let drain problems disrupt your day. Call Simon at Cre8flow now!
Servicing Geelong, the Surf Coast and Melbourne’s Western Suburbs.