
Leaking taps are a common household problem, leading to water wastage, increased water bills, and even property damage. Leaking taps are among the most common plumbing problems faced by homeowners.
Understanding the causes of leaking taps and finding effective solutions is crucial. Dripping taps are a frequent source of water wastage and should be addressed promptly.
In this article, we will explain the structure of a tap, common causes of leaks, DIY solutions, when to call a professional plumber, and preventive measures to avoid future issues.
Understanding the Structure of a Tap
Before delving into the causes and solutions of leaking taps, it is essential to understand the structure of a tap.
A tap has several parts that work together to control the water flow.
These parts include the tap handles, handle, spindle, body, seals, O-rings, washer, spout, and valve seat. Tap handles are used for turning the spindle, which opens and closes the tap’s valve. Both hot and cold taps use similar mechanisms, where turning the handle clockwise or anticlockwise controls the water flow. Water exits through the spout.
Seals and O-rings prevent water from leaking around the spindle and valve seat. The washer controls the water flow and is located at the end of the spindle. The valve seat seals the washer and the tap’s body. Some internal components are held in place by a screw, which may need to be removed during maintenance. A flathead screwdriver is often used to remove the decorative cap or access internal screws.
Common Causes of Leaking Taps
Several factors can cause taps to leak. Water leaking from taps is often the result of worn or damaged components, such as washers, O-rings, or the tap valve. A constant drip is a common sign of underlying plumbing problems that should be addressed promptly.
Here are some of the most common causes:
Worn-Out Seals and O-rings
Seals and O-rings can wear out over time, resulting in leaks. Proper tightening of seals and O-rings is essential for the security of the tap and to prevent leaks. Limescale formation can also impact these, causing them to degrade faster. You may also need to assess your jumper valve, tap bonnet, and tap body.
Broken or Damaged Washer
The washer plays a crucial role in controlling the water flow in a tap. When the tap is closed, the washer shuts off the water flow by pressing tightly against the valve seat. A broken or damaged washer can lead to water leaks.
Damaged Valve Seat
The valve seat seals the washer and the tap’s body. A common point for leaks to develop is where the valve seat and washer meet, so it’s important to inspect this area carefully. If the valve seat is damaged, water can seep through and cause leaks.
Incorrect Water Pressure
Fluctuations in water pressure can cause a tap to drip. Possible reasons for incorrect water pressure include issues with the water mains, water pump, or pressure regulator. If you suspect high or fluctuating water pressure, it is advisable to consult a licensed plumber. Plumbers have the expertise to diagnose and resolve complex water pressure issues safely and effectively.
Corroded Pipes or Damage from Tree Roots
Pipes can become corroded or damaged over time due to factors such as aging, exposure to harsh weather conditions, or damage from tree roots. These pipe issues can impact the function of a tap and lead to leaks. Corroded or damaged pipes are a common cause of leaks in bathroom taps and other bathroom fixtures.
Accumulation of Mineral Deposits
Mineral deposits can accumulate in taps over time, causing them to become clogged and leading to leaks.
DIY Solutions for Leaking Taps
If you’re experiencing a leaking tap, the process of fixing it involves several steps, and there are several DIY solutions you can try before calling a professional plumber. If your initial efforts do not stop the leak, don’t be discouraged – sometimes it takes a few attempts to resolve the issue.
Replacing the Seal, Broken Washer and O-Ring
Replacing seals and O-rings is a relatively easy and cost-effective solution to fix a leaking tap. It is essential to use the correct replacement parts, such as compatible O-rings and seals, to ensure a successful repair and prevent future leaks. You can purchase replacement seals and O-rings from your local hardware store and follow a step-by-step guide to replace them.
Replacing a Broken or Damaged Washer
Replacing a broken or damaged tap washer requires some plumbing knowledge but can also be done as a DIY solution. You will need to turn off the water supply, remove the tap’s handle, unscrew the spindle, and replace the washer.
Once the washer is replaced and the tap is reassembled, the job is complete.
Fixing a Damaged Valve Seat
If the washer and jumper valves are damaged, they may need to be replaced. You can purchase a replacement valve seat and follow a step-by-step guide to fix the issue. After replacing the valve seat, the leak should be fixed.
Adjusting Water Pressure
If the water pressure starts to reach a level that’s too high or too low, it can cause a tap to leak. You can adjust the water pressure by adjusting the pump or regulator.
Addressing Pipe Issues
If your leaky tap is due to corroded pipes or damage from tree roots, you may need to replace the affected pipes or assess your hot water system. This more complex DIY solution requires tap repair knowledge and tools.
Removing Mineral Deposits
Mineral deposits can be removed by soaking the tap components in vinegar or a descaling solution. You can also use a toothbrush or a small brush to scrub away the deposits. If there are small internal components that need to be removed for cleaning, needle nose pliers can help you carefully extract them without causing damage.
When to Call a Professional Plumber
DIY fixes can work for simple tap issues, but some situations call for a professional plumber. This includes taps that still leak after repair attempts, fittings that are hard to reach or require specialised tools, or complex pipework that needs expert attention.
A licensed plumber ensures the job is done safely and correctly, often saving money by preventing further damage or costly repairs.
If you’re unsure about a DIY fix, or the problem risks worsening, it’s best to call a professional. Always check reviews and ratings to choose a trusted, reliable provider.
Preventive Measures to Avoid A Leaking Tap
Taking preventive measures can help avoid future issues with leaking taps. Here are some tips:
- Regularly check taps for signs of leaks
- Replace tap washers if damaged
- Assess the jumper valve if you’re experiencing a leak
- Address any issues promptly
- See if the cause is coming from your hot water systems
- Install water softeners to reduce the impact of limescale formation
- Avoid using harsh chemicals that can damage tap components
Key Takeaways
A dripping tap is frustrating and can waste water, but most leaks are simple to fix with a few basic steps. Acting quickly not only saves money but also prevents further damage. By following the DIY tips in this article and taking preventive measures, you can keep your taps in good condition and reduce the risk of future leaks. For more complex issues, it’s best to seek professional advice to ensure the repair is done safely and meets local regulations.
Remember, if you’re unsure about a DIY solution or the issue requires professional attention, don’t hesitate to call an emergency plumber.









