It's a common annoyance: you've twisted your tap as far as it will go, but there's that persistent drip, drip, drip. Not only can a dripping tap be a frustrating noise, it's also a waste of water and can lead to more significant issues down the line if not addressed. But why does this happen, and what can you do about it? This blog post will delve into the mechanics behind a dripping tap, identify common causes, and provide guidance on both DIY fixes and when to call in a professional.
Understanding Tap Mechanics
Taps are deceptively simple devices. Most household taps operate using one of three types of mechanisms: compression, ball, or ceramic disc. Compression taps are more traditional, featuring a rubber washer that seals against a valve seat to stop water flow. Ball and ceramic disc taps, however, rely on hard, durable materials that fit together precisely to form a water-tight seal.
Common Causes of a Dripping Tap
1. Worn Out Washer:
The most frequent culprit behind a dripping compression tap is a worn-out washer. Over time, the repeated action of turning the tap on and off can cause this small piece of rubber to degrade and lose its ability to form a complete seal.
2. Damaged Valve Seat:
In compression taps, the valve seat can also wear out or accumulate mineral buildup. This results in a less than smooth surface for the washer to seal against, leading to drips.
3. O-Ring Problems:
The O-ring is a small, often rubber, ring located around the stem of a tap. If it wears out or breaks, it can cause the tap to leak near the handle.
4. Cartridge Issues:
For taps with a cartridge system, it's possible for the cartridge itself to wear out or for tiny debris to impair its function, leading to dripping.
Identifying the Problem
To deal with a dripping tap effectively, the first step is identifying the root cause. Is the tap leaking from the spout or the base? Does your tap have a visible brand or model number? This information can be helpful if you end up needing to find replacement parts.
DIY Fixes for a Dripping Tap
- Turn off the water supply before you start any repair!
- For a worn-out washer:
- Unscrew the top of the tap to expose the mechanism within.
- Replace the washer with a new one that matches in size and thickness.
- For valve seat damage:
- This can be trickier. A valve seat can sometimes be re-faced with a special tool. However, care must be taken not to damage the tap body.
- For O-ring issues:
- Remove the tap handle and stem (as you would when addressing the washer).
- Replace the old O-ring with a new one.
- For cartridge problems:
- You'll need to replace the cartridge. Make sure to purchase the correct model, which can usually be found on the cartridge or in the tap's manual.
When to Call a Professional
While replacing a washer or O-ring can often be a simple task, more complex issues like a damaged valve seat or a malfunctioning cartridge might require professional expertise. Not only does this ensure the job is done correctly, but it also avoids the risk of further damage by well-meaning but inexperienced hands.
Preventing Future Drips
- Regular maintenance: Occasionally removing the tap head to clean and inspect the internal parts can prevent buildup and wear.
- Soften your water: Hard water can speed up the degradation of certain tap components. Consider installing a water softener if you live in a hard water area.
- Don’t over-tighten: While it's tempting to crank the tap tightly to ensure it's off, this actually speeds up the wear on the washer and valve seat.
Conclusion
Fixing a dripping tap is often a straightforward task, but understanding the underlying mechanism and exact cause of the drip is crucial. Tackle simple washer and O-ring replacements yourself, but don’t hesitate to call in a plumbing professional for more complex issues. Regular maintenance and a gentle touch will keep your taps functioning well and conserve water in your home.
Remember, while the occasional DIY project can be satisfying and cost-effective, there's always value in ensuring the job is done right. A professional plumber not only fixes the problem but can also offer advice on potential plumbing upgrades and long-term solutions to keep your home's water systems running smoothly.
