Fixing a Dripping Tap: A Comprehensive Guide

Photo by Clay Banks on Unsplash

A dripping tap is not only annoying but can also lead to increased water bills and wastage. A single dripping tap can waste up to 5,000 litres of water a year, so addressing the issue promptly is both cost-effective and environmentally friendly.

This guide will take you through the causes of a dripping tap and provide step-by-step instructions to fix it. Whether you have a traditional tap or a modern mixer tap, you’ll find practical solutions to stop the drip.

Tools Required

• Adjustable wrench
• Screwdriver set
• Replacement washers or cartridges
• Plumber’s tape
• Cloth or towel

Safety Warnings

• Ensure the water supply is turned off before beginning any repairs.
• Be careful when using tools on delicate parts to avoid damage.
• If unsure about the type of tap, refer to the manufacturer’s instructions or consult a professional.

Why This Problem Happens

The most common cause of a dripping tap is a worn-out washer. In traditional taps, the washer is compressed over time, losing its ability to seal the tap and stop the flow of water. In mixer taps, the cartridge that controls water flow can also wear out.

Other causes include damaged valve seats, loose parts, or an incorrect installation. Addressing these issues promptly can prevent further damage and water wastage.

Step-by-Step Instructions

Step 1: Turn Off the Water Supply

Locate the water shut-off valve under the sink and turn it off. Open the tap to drain any remaining water in the pipes.

Step 2: Remove the Tap Handle

Use a screwdriver to remove the screw securing the handle. Carefully lift the handle off the tap to expose the internal parts.

Step 3: Replace the Washer or Cartridge

For traditional taps, remove the valve stem and replace the washer. For mixer taps, remove the cartridge and replace it with a new one. Ensure all parts are clean and free from debris.

Step 4: Reassemble the Tap

Reattach the valve stem or cartridge and secure the handle back onto the tap. Ensure all parts are tightly fastened to prevent future leaks.

Step 5: Turn On the Water Supply

Turn the water supply back on and test the tap to ensure the dripping has stopped. Check for any leaks around the base of the tap and tighten connections if necessary.

Common Mistakes to Avoid

• Not turning off the water supply can lead to flooding.
• Using the wrong size washer or cartridge can cause further leaks.
• Overtightening parts can damage the tap and lead to leaks.

Troubleshooting Tips

Tap continues to drip after replacing the washer.

Check if the valve seat is damaged and needs regrinding or replacement.

Water leaks from the base of the tap.

Ensure all connections are tight and use plumber’s tape to seal any gaps.

Frequently Asked Questions

How can I identify if I have a traditional or mixer tap?

Traditional taps usually have separate hot and cold controls, while mixer taps have a single lever for temperature control.

How often should tap washers be replaced?

Tap washers should be checked and potentially replaced every 1-2 years, depending on usage.

Can a dripping tap cause damage?

Yes, prolonged dripping can lead to increased water bills and potential damage to the sink or countertop.

What is the purpose of plumber’s tape?

Plumber’s tape is used to create a watertight seal on threaded pipe joints, helping prevent leaks.

Is it difficult to replace a tap cartridge?

Replacing a tap cartridge is generally straightforward with the right tools, but consult a professional if unsure.

When to Call a Professional

• If the tap continues to drip after replacing washers or cartridges, professional inspection may be necessary.
• Complex issues such as damaged valve seats or internal corrosion should be handled by a plumber.

Final Thoughts

Fixing a dripping tap is a simple yet effective way to conserve water and reduce utility bills. Regular maintenance and timely repairs can prevent small issues from becoming costly problems.

Remember, if DIY methods don’t resolve the problem, professional help is always a viable option to ensure a long-lasting fix.

This section may contain affiliate links. We may earn a commission at no extra cost to you.

Tools & Materials

These are the main bits you’ll want ready before taking the tap apart.

• 150mm adjustable spanner – useful for loosening tap nuts, covers and valve parts without needing several spanners.
• Pozidriv and flat screwdriver set – helps remove tap handles and retaining screws cleanly.
• Tap washer assortment kit – handy for traditional taps, so you can match the worn washer with the right size.
• Ceramic tap cartridge replacement – needed for many mixer taps where the drip is caused by a faulty cartridge.
• PTFE thread seal tape – useful for resealing threaded connections if you spot a small leak during reassembly.
• Microfibre cleaning cloths – good for protecting chrome surfaces and mopping up water as you work.