When a tap begins to leak, it's not just a small annoyance; it can signify something more troubling occurring with your plumbing. This is a common issue in many households, where the constant drip-drip sound becomes a part of the background. But why does it happen, and more importantly, how can you fix it? In this post, we delve into the causes of a leaking tap, outline steps to fix the problem, and discuss when it might be time to call in a professional.
Understanding Why Taps Leak
Taps leak for various reasons, but the most common culprit is worn out washers. Washers are the rubber or ceramic rings that form a water-tight seal to prevent water from passing through when the tap is turned off. Over time, these washers can degrade due to wear and tear or suffer from limescale buildup, particularly in hard water areas.
Another reason could be corrosion in the valve seat, the part of the tap where the washer sits. If the valve seat is not smooth, it can damage the washer or prevent it from forming a good seal. Less commonly, problems in the tap's cartridge or issues with the O-ring—another type of seal inside the spout—can cause leaking.
Spotting the Problem
Identifying the type of leak can help determine the cause and, subsequently, the solution. If the tap drips when turned off, it’s typically an issue with the washer or valve seat. A leak from the spout base or handle when the tap is on can indicate a problem with the O-ring or cartridge.
Fixing a Leaking Tap
If you're comfortable using basic tools, you might be able to fix a simple tap leak yourself. Here’s how to tackle a washer replacement:
1. Turn Off the Water Supply: Always start by turning off the water supply to the tap. This might be a local valve under the sink or the main water stopcock, usually located where water enters your home.
2. Plug the Sink: Before you start, plug the sink to prevent any small parts from falling down the drain.
3. Dismantle the Tap: Most taps have a decorative cap on top. Pry this off with a screwdriver, then unscrew the handle to expose the tap mechanism. You might need an adjustable spanner to loosen the nut that holds the mechanism in place.
4. Replace the Washer: Once you have access, remove the old washer at the base of the mechanism and replace it with one that matches in size and shape. Washers are inexpensive and available at most hardware stores.
5. Reassemble the Tap: Put everything back in reverse order. Make sure all parts are secure but avoid overtightening, as this can damage the new washer.
6. Test Your Work: Turn the water back on and check the tap. No more leaks should be present if everything is fitted correctly.
When to Call a Professional
If your tap continues to leak after you have replaced the washer, it might be time to call in a professional. Persistent issues could be due to a corroded valve seat or a more complex problem within the tap mechanism. Additionally, if you’re not confident in taking the tap apart or if your home has older, more delicate plumbing, it might be safer and more cost-effective to hire a plumber.
Preventing Future Leaks
Regular maintenance can help extend the life of your taps and prevent leaks. This includes cleaning taps regularly to avoid limescale buildup and replacing washers and O-rings at the first signs of wear. If you live in a hard water area, consider installing a water softener to protect your plumbing system from limescale damage.
Conclusion
While a leaking tap is a common issue, understanding its causes and knowing how to address it can save a lot of hassle and prevent potential water damage. For minor leaks, replacing the washer often resolves the problem. However, don't hesitate to contact a professional if the issue persists or you're unsure about undertaking repairs yourself. Regular maintenance is key to ensuring your taps remain in good working order, helping you to avoid the repetitive drip of a leak long before it starts.
