Fix or Change a Leaking Bathroom Tap or Washer

4 April 2024

Maintaining your home’s plumbing can be a daunting task, but replacing or fixing a bathroom tap doesn’t have to be. Whether you're dealing with a leaking tap or considering a complete upgrade, this comprehensive guide will walk you through every step of the process. We'll cover everything from diagnosing the problem to selecting the right taps and executing the repair or replacement.

Deciding Between Replacing and Fixing Taps

Reasons to Replace Taps

Modernisation: Outdated taps can detract from your bathroom’s appearance, making it look old-fashioned and worn. Replacing them with modern designs can instantly update the look of your bathroom, adding aesthetic appeal and potentially increasing your home's value.
Damage: If the tap body is cracked or severely worn, it can lead to leaks and inefficient water usage. Visible corrosion or wear can also compromise the structural integrity of the tap, making replacement a safer and more practical option.
Frequent Leaks: Persistent leaks might indicate it's time for a new tap. If you've replaced washers and other parts multiple times and the tap continues to leak, the internal mechanisms might be too worn or damaged to function properly, necessitating a full replacement.

Reasons to Fix Taps

Cost-Effective: Fixing a minor issue is usually cheaper than replacing the tap. Often, a simple washer replacement or tightening of components can resolve leaks, saving money on purchasing new taps and hiring a plumber.
Minor Leaks: Often caused by worn-out washers or O-rings, minor leaks can typically be fixed quickly and easily without the need for significant investment. These parts are inexpensive and readily available, making repairs straightforward.
Preference: You may like the style of your current taps and prefer to keep them. If your existing taps match your bathroom’s decor and function well aside from a minor issue, repairing them can maintain the aesthetic and functional harmony of your space.

How to Decide

Assessment: Check for visible damage or corrosion. Look for signs of wear and tear, such as cracks, rust, or mineral deposits, which can indicate that the tap needs replacing rather than repairing.
Cost Analysis: Compare the cost of new parts versus a new tap. Consider the price of replacement washers, O-rings, and other components against the cost of a new tap. Factor in potential labour costs if you need to hire a plumber.
Functionality: Determine if the current tap meets your functional needs. Consider whether the tap’s design and operation suit your daily use. If you find the tap inconvenient or inadequate, a replacement might be a better long-term solution.

Common Causes of Leaking Taps

General Causes

Worn Washers: The most common cause, washers wear out over time due to constant friction and pressure. A worn washer can no longer create a watertight seal, leading to drips and leaks.
Damaged O-Rings: These small rings ensure a tight seal but can deteriorate over time. O-rings are often found in mixer taps and can become brittle or cracked, allowing water to seep through.
Corroded Valve Seats: The connection between the tap and spout can corrode, causing leaks. Mineral deposits from hard water can build up on the valve seat, leading to corrosion and an uneven surface that water can leak through.
Loose Parts: Components can become loose over time, leading to leaks. Regular use can cause screws and other parts to loosen, which can disrupt the seals and joints within the tap, resulting in leaks.

Room-Specific Causes

Bathroom Taps: High usage and hard water can lead to mineral buildup and wear. Frequent use in bathrooms, combined with the effects of hard water, can cause internal components to degrade faster, leading to leaks.
Kitchen Taps: Frequent movement and usage of swivel taps can wear out washers and O-rings. The constant rotation and movement of kitchen taps can place additional strain on washers and seals, accelerating wear and tear.
Shower Taps: Pressure fluctuations and frequent use can damage internal parts. Shower taps often experience varying water pressures and temperatures, which can cause seals and other internal components to fail.
Outdoor Taps: Exposure to the elements can cause faster wear and corrosion. Outdoor taps are subject to weather conditions, including freezing temperatures and direct sunlight, which can lead to faster deterioration of materials.

What to Look for When Buying New Taps

Key Considerations

Compatibility: Ensure the new tap fits your existing plumbing setup. Measure the existing fittings and check the specifications of the new tap to avoid issues during installation.
Quality: Look for taps made from durable materials like brass or stainless steel. High-quality materials resist corrosion and wear better, ensuring a longer lifespan and fewer issues over time.
Style and Finish: Match the tap’s style and finish to your bathroom’s décor. Choose a design that complements your bathroom's aesthetic, whether it's modern, traditional, or somewhere in between. Finishes like chrome, brushed nickel, and matte black offer different looks and levels of maintenance.
Functionality: Consider features like single or dual handles, pull-out spouts, and water-saving options. Think about how you use your taps and what features would make them more convenient and efficient for your daily routine.

Types of Taps

Shower Heads & Mixers: Designed specifically for showers, these taps can include features like adjustable spray patterns and built-in mixers for easy temperature control. They come in a variety of styles and finishes to match your bathroom decor.
Basin Taps: Typically used for bathroom sinks, these taps come in a variety of designs, from traditional to contemporary. They can be mounted on the sink or the wall and often feature single or dual handle options.
Bath Taps: These are designed to fill bathtubs quickly and efficiently. They can be mounted on the wall, the bath rim, or even on the floor as freestanding taps. Many bath taps also come with a handheld shower attachment.
Laundry Taps: Built to withstand heavy use, laundry taps are often more robust and may include features like a swivel spout for easy bucket filling. They are usually more functional in design compared to bathroom taps.
Wall-Mounted Taps: Mounted on the wall, freeing up sink space and creating a clean, uncluttered look. They require more complex installation but can be a striking feature in a contemporary bathroom.

Changing A Tap

Tools and Materials:

New taps: Ensure it’s compatible with your current plumbing.
Screwdriver: For removing screws and parts of the tap.
Adjustable wrench: For loosening and tightening nuts and bolts.
Allen key: Often needed for removing handles or other components.
New washers or O-rings: Replacement parts to fix the leak.
Plumber's tape: To ensure a watertight seal on threaded connections.

Step 1: Turn off the water

Locate and turn off your main water supply. This is typically found near your water meter, usually at the front of your property.

Step 2: Undo the Indicator Cap

Start by undoing the indicator cap at the top of the tap. Some taps will have an additional screw under the cap which you will need your screwdriver or allen key to undo. Once the cap is off, remove the handle and unscrew the cover plate.

Step 3: Remove spindle

Now it’s time to remove the spindle. Here’s a tip, have your tap in the open position as it will make it easier to remove the spindle.

Step 4: Put new spindle in

Now simply reverse those steps. Put the new spindle in, cover plate, handle on and the indicator cap. Your new taps will be in place in no time at all

Step 5: Turn Water On

Turn the water supply back on and test the new tap. Run the tap and inspect for any leaks around the base or connections.

Changing A Tap

Tools and Materials:

New taps
Screwdriver: For removing screws and parts of the tap.
Adjustable wrench: For loosening and tightening nuts and bolts.
Allen key: Often needed for removing handles or other components.
New washers or O-rings: Replacement parts to fix the leak.
Plumber's tape: To ensure a watertight seal on threaded connections.

Step 1: Turn Off the Water

Locate and turn off your main water supply. This is typically found near your water meter, usually at the front of your property.

Step 2: Drain The Pipes

Turn on the tap to let any remaining water out. This ensures there's no water pressure in the pipes when you begin your work.

Step 3: Remove Old Tap

Unscrew the tap from the basin or wall, and remove it. Be careful to catch any water that may spill out with a bucket or towel.

Step 4: Install New Tap

Fit the new tap in place, ensuring all connections are tight and secure. Use plumber's tape on threaded connections to ensure a watertight seal.

Step 5: Seal Connections

Ensure all connections are sealed properly to prevent leaks. Double-check that all nuts and bolts are tight but not over-tightened.

Step 6: Turn On the Water

Turn the water supply back on and test the new tap. Run the tap and inspect for any leaks around the base or connections.

Additional Tips and Troubleshooting

Tips for a Successful Tap Repair or Replacement

Use Quality Parts: Investing in high-quality washers and taps can save money in the long run. Cheap parts may fail more quickly, leading to more frequent repairs and potential damage to your plumbing.
Check for Corrosion: Inspect all parts for corrosion and replace if necessary. Corrosion can weaken the metal and cause leaks or breakages, so it's important to replace any corroded components.
Follow Manufacturer Instructions: Always refer to the manufacturer’s guidelines for your specific tap model. These instructions will provide specific details and tips for your particular tap, ensuring a proper installation.

Common Issues and Solutions

Tap Still Leaking After Replacement

Cause: The new washer may not be seated correctly. If the washer isn't positioned properly, it won't create a watertight seal.
Solution: Re-check the installation and ensure all parts are fitted properly. Make sure the washer is the correct size and type for your tap and that it's installed correctly.

Low Water Pressure

Cause: Blockages in the tap or pipes can reduce water flow. Mineral deposits, debris, or internal damage can cause blockages.
Solution: Clean the tap aerator and check for blockages in the pipes. Remove the aerator from the tap spout and clean it with vinegar to dissolve mineral deposits. Check the pipes for any visible blockages and clear them as necessary.

Frequently Asked Questions

How often should I replace tap washers?

Typically, tap washers should be replaced every 1-2 years to prevent leaks. Regular maintenance can help avoid leaks and prolong the life of your taps.

What if my tap is still leaking after replacing the washer?

Ensure the washer is the correct size and properly seated. Persistent issues may require professional inspection to identify underlying problems, such as a damaged valve seat or worn tap body.

Can I replace a tap myself, or do I need a plumber?

Many tap replacements are straightforward and can be done by DIY enthusiasts. However, if you’re unsure, consulting a professional plumber is recommended. Complex installations or those involving changes to plumbing should be handled by a professional to ensure safety and compliance with regulations.

Are mixer taps better than separate hot and cold taps?

Mixer taps offer more convenient temperature control and are often more modern in design, but the choice depends on personal preference and bathroom style. Mixer taps are generally easier to use and can be more water-efficient, but separate taps may suit a more traditional aesthetic.

Replacing or fixing your bathroom taps can be a straightforward DIY project with the right tools and knowledge.

Whether you’re dealing with a simple leak or upgrading to new taps, following this comprehensive guide will help ensure a successful and stress-free experience. Remember to take your time, use quality materials, and don’t hesitate to seek professional help if needed.

By addressing potential issues and providing clear, step-by-step instructions, you can transform your bathroom and maintain your home with confidence. Happy plumbing!