July 31, 2024

Quick Fix Guide: How to Unclog and Repair a Shower Tray That's Not Draining

A comprehensive guide to getting the shower tray back to its free-flowing glory!

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There's nothing more annoying than stepping into the shower, only to realise that the water is slowly—or worse, not at all—draining. Many people can relate to the frustration felt one morning when, running late to an important meeting, they found themselves ankle-deep in soapy water. Not the best start to the day, right? But over time, various tricks have been discovered to tackle this pesky problem head-on. Curious to know how you can get your shower tray draining smoothly again?  

Before panicking and calling a plumber, let's explore some simple and effective solutions that anyone can try themselves. From unclogging using household items to checking the drainage system, there's a lot that can be done to get that water flowing freely once more.

Common Causes of a Clogged Shower Tray

  • A common culprit behind a clogged shower tray is hair. It is amazing how quickly even short strands can accumulate and form what feels like an impenetrable blockade. But hair isn't the only offender; soap scum, dirt, and even minerals from hard water can contribute to clogs over time.
  • Some shower trays have been poorly designed with too shallow a slope, allowing water to pool and debris to settle rather than flow smoothly down the drain. This design flaw turns shower sessions into unenviable wading experiences, highlighting the importance of selecting a well-engineered shower tray!
  • Another issue is the build-up of products. Consider all the shampoos, conditioners, and body washes that flow down the drain. Over time, their residues can combine into a sticky sludge that narrows the pipe opening. There was an almost cement-like blockage caused by a combination of hair conditioner and mineral deposits.
  • Interestingly, industry studies suggest that resin shower trays, particularly those designed with effective geometry, may fare better in preventing clogs. The smoother surfaces and optimal angles help in guiding the water and debris straight into the drain without much fuss.
  • Lastly, routine care and maintenance play a key role in preventing these clogs. Regular cleaning, both of the surface and the hidden parts like the siphon canister, can make a significant difference. It's an ounce of prevention that can save a lot of frustration down the line.

Is it necessary to remove the shower tray to fix a drainage issue?

The thought of removing an entire shower tray might seem daunting. In reality, it's seldom necessary unless there's significant structural damage or the underlying plumbing needs an overhaul. More often than not, the issues can be resolved with a bit of elbow grease and patience. So, before reaching for the toolbox and starting to dismantle, it's worth exploring some less invasive options.

A well-designed shower tray should facilitate proper drainage without frequent clogs. However, sometimes debris, hair, soap scum, and other gunk can build up and factor into poor drainage. Addressing these blockages often doesn't require tray removal. A simple, yet effective method is to start with cleaning the siphon canister. This sneaky little component can accumulate a surprising amount of gunk over time.

Additionally, consider using a plunger or a pipe unblocker. By creating a seal around the drain, a plunger can dislodge stubborn blockages. On one occasion, after days of slow drainage, a quick plunge was all it took to get things flowing smoothly again. The power of such straightforward tools should not be underestimated!

Remember those household remedies often talked about in the past? A mixture of vinegar and baking soda can work wonders too. Pour it down the drain, let it fizz away for a bit, and then flush with hot water. It's both a cleaner for the pipes and a preventative measure against future clogs.

Of course, if these methods don't seem to alleviate the problem, and water still pools around during a shower, it might be time to inspect deeper issues with the plumbing. In those cases, consulting a professional can save time and ensure that the job is done correctly. But for the most part, rest easy knowing that there’s no need to overhaul the bathroom at the first sign of a drainage issue.

Step-by-Step Guide to Unclogging Your Shower Tray

  1. First things first, let's gather the necessary tools. One will need a pair of gloves, a drain snake, a plunger, a hose, and some natural or proprietary unblocker solutions. It is always recommended to keep a mixture of vinegar and baking soda on hand, as it is both effective and eco-friendly.
  2. Where does one start? The first step is to remove any obvious debris. Put on the gloves, and fish out any hair or soap scum that's sitting on the surface or just inside the drain. It is surprising how often this simple task resolves the issue.
  3. Next, take the plunger and give it a few firm pushes over the drain. This can create enough suction to dislodge minor blockages. One time, a stubborn clog that almost drove someone to call in a professional turned out to be a small toy a child had "accidentally" dropped in there. A few plunges, and it was sorted!
  4. If that doesn't do the trick, it is time to bring out the drain snake. Carefully insert it into the drain and twist it as it is pushed. Resistance might be felt—this is likely the blockage. Keep turning and pushing the snake to break up the clog, then slowly pull it out. Be prepared for some unpleasant gunk, but it is highly satisfying to see all that grime coming out.
  5. Sometimes, the clog might be a bit too tenacious for these tools alone. This is when the natural unblocker cocktail of vinegar and baking soda comes into play. Pour about half a cup of baking soda into the drain, followed by a cup of vinegar. There will be a fizzy reaction—that's the magic happening. Let it sit for 15-30 minutes, then flush it through with hot water. This method has been used countless times and works wonders!
  6. In some severe cases, despite best efforts, the clog remains. If all these methods have been exhausted, it may be time to consider a proprietary chemical unblocker or, for those who prefer to stay green, an eco-friendly commercial product. Follow the instructions on the label carefully, as these chemicals can be potent.
  7. For those particularly stubborn blockages that refuse to budge, don't hesitate to call in professional help. A licensed plumber has specialised equipment, like an auger or an industrial-strength snake, to tackle the most persistent clogs.

When to Call a Professional Plumber

So, you've tried every trick in the book: plungers, wire hangers, the trusty old baking soda and vinegar combo, even those chemical drain cleaners (though I’d caution against regular use). But that stubborn shower tray just doesn't want to drain. This is usually the point where I throw in the towel—figuratively, of course—and call in the pros.

Calling a professional plumber isn't an admission of defeat. In fact, there are several scenarios where it's the best course of action. For instance, if the clog is too far down to reach or if it’s caused by something more sinister than just hair and soap scum, an expert’s touch is invaluable. Professional plumbers have specialised tools—like an auger or a plumber’s snake—that can reach deep into the pipes to clear out stubborn blockages.

Another red flag is recurring issues. If someone finds themselves unclogging the same shower tray every few weeks, that’s a signal that there’s a bigger problem at hand, possibly with the pipe condition or slope. Repeated clogs can also point to improper installation. In this case, it might be worth having a plumber check the overall health of the plumbing system.

Preventative Measures to Keep Your Shower Tray Clear

  • Keeping a shower tray clear might seem like an arduous task, but with a few simple routines and a bit of mindful care, those frustrating clogs can be prevented. Here are some tips that have proven incredibly useful over the years.
  • Firstly, routine cleaning is key. It's surprising how much of a difference it makes to give the shower tray a quick rinse and wipe down after each use. This prevents soap scum, hair, and other debris from accumulating and forming blockages. An old toothbrush is handy – it's great for getting into those hard-to-reach corners.
  • Another pro-tip: install a drain guard. This little device can catch hair and larger debris before they have a chance to clog up the pipes. A mesh drain cover works wonders and only needs to be cleaned out every week or so.
  • Next, consider a monthly baking soda and vinegar flush. Mix a cup of baking soda with a cup of vinegar and pour it down the drain. Leave it for about 10-15 minutes, followed by a pot of boiling water. This natural remedy can do wonders to break down any buildup and keep the pipes clear. Making this part of the regular bathroom cleaning schedule can maintain a trouble-free shower tray.
  • Investing a bit in quality cleaning products designed for shower maintenance can also be beneficial. Look for products that target soap scum and limescale. Using these every couple of weeks can make a significant difference in maintaining a clog-free shower tray.
  • Finally, it might be worth considering the design of the shower tray. If consistently facing clogging issues, a poorly designed tray might be the culprit. Newer resin trays with well-thought-out geometries are specifically designed to prevent such issues. If renovating or upgrading, it’s definitely worth investing in a well-designed tray to save a lot of hassle down the line.


By implementing these preventative measures, one can enjoy a smoother and more pleasant shower experience without the dread of standing water or unexpected clogs. A little effort goes a long way in maintaining a clear shower tray!

And there it is—a comprehensive guide to getting the shower tray back to its free-flowing glory. Regular maintenance and cleaning can help prevent these blockages from becoming a recurring headache.

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