Leaking mixer taps are a common annoyance in many kitchens. Not only do they waste water, but they can also lead to increased water bills and potential damage to your kitchen fixtures. If you're facing this issue with your kitchen mixer tap, understanding why it happens and how to fix it can save you from unnecessary stress and expense.
What Causes a Mixer Tap to Leak?
Mixer taps combine hot and cold water, allowing you to control both the temperature and the flow with either one or two handles. Over time, the internal components such as the cartridge or washers can wear out or become damaged, often resulting in a leak.
Identifying the Type of Leak
Leaks in mixer taps can occur in several places:
1. Spout: A leak from the spout usually indicates a problem with the internal cartridge or O-rings.
2. Base of the Tap: If water is leaking from where the tap meets the sink, it's likely due to worn out washers or a failing gasket.
3. Handles: Leakage around the handles can be due to worn O-rings or seals inside the handle assembly.
Step-by-Step Guide to Fixing a Leaky Mixer Tap
Turn Off the Water Supply
Before starting any repairs, ensure the water supply to the tap is turned off. This is typically done using the isolation valves located under the sink. Turn the valves clockwise to close them.
Disassemble the Tap
1. Remove the Handle or Handles: Most handles are secured with a small screw, often hidden under a decorative cap on the top of the handle. Use a screwdriver to remove it.
2. Take Out the Cartridge or Washer: Depending on the design of your tap, you may find a cartridge or a traditional rubber washer. These are usually held in place by a retaining nut. Remove this using an adjustable wrench.
Inspect and Replace the Faulty Parts
1. Cartridge Taps: If your mixer tap uses a cartridge, inspect it for any signs of wear or damage. Replace it if necessary. Cartridges must match the brand and model of your tap for a proper fit.
2. Washer Taps: Examine the washer and the valve seat within the tap. Replace the washer if it's worn out, and consider reseating or replacing the valve seat if it's damaged.
Reassemble the Tap
Once the new parts are in place, reassemble the tap in the reverse order you took it apart. Ensure all parts are secure but avoid over-tightening, which can damage the new components.
Test Your Work
Turn the water supply back on by opening the isolation valves. Check the tap for leaks. It may take a few turns to get the handle aligned correctly with the water flow.
When to Call a Professional
If after following these steps, you find that the tap continues to leak or you're uncomfortable undertaking this repair yourself, it might be time to call a professional plumber. Some tap designs are more complex and require special tools for repair.
Preventing Future Leaks
Regular maintenance can help extend the life of your mixer tap and prevent future leaks. Periodically check the tightness of the tap's components, and consider replacing washers and cartridges every few years, even if there's no obvious sign of wear.
Limescale and Corrosion Prevention
In hard water areas, limescale buildup can also contribute to leaky taps. Regularly cleaning your tap and using a water softener can reduce the risk of limescale. Additionally, make sure to clean any visible metal parts with a suitable cleaner to prevent corrosion.
Conclusion
Dealing with a leaking mixer tap can be a straightforward fix if you identify the type of leak and take the appropriate steps to address it. Remember to replace worn-out parts with good-quality replacements to ensure a long-lasting repair. If the problem persists or you're unsure about tackling the job yourself, don't hesitate to contact a professional. By taking good care of your taps, you'll ensure they perform well and remain leak-free for years to come.
