Experiencing a dripping mixer tap can be surprisingly frustrating. You might find it a trivial issue at first, but a constantly dripping tap can lead to wasted water and an inevitably higher water bill over time. But what really causes your mixer tap to drip despite being firmly turned off, and how can you address it effectively without necessarily calling in a professional right away?
Most commonly, the culprit behind a dripping mixer tap lies within the internal mechanics—specifically, the washers or the ceramic discs, depending on the type of tap you have. This blog post explores the nuances of fixing a dripping mixer tap, empowering you with the knowledge to tackle this issue head-on and understand when it might be time to call in a professional.
Understanding Mixer Tap Mechanics
A conventional mixer tap allows both hot and cold water to be dispensed through a single spout, with the temperature controlled by adjusting either one or two handles. There are two primary types of mixer taps: those that use rubber washers and those that use ceramic discs. Identifying which type you have is essential, as the repair process differs slightly between them.
Spotting the Signs of a Problem
A dripping mixer tap often begins as an occasional drop but can quickly escalate to a constant trickle, signifying it’s time for a closer inspection. Paying attention to when the drip occurs can also provide clues; for example, if it tends to drip more when the tap has been used recently and less after it's been idle for a while, this can indicate a problem with how the tap mechanism is sealing when turned off.
The Common Culprit: Worn-Out Washers
In mixer taps that utilise rubber washers, these components bear the brunt of wear and tear. Over time, washers can become worn, stiff, or even break apart, resulting in a poor seal and subsequent dripping. Luckily, replacing a washer is relatively straightforward:
1. First, ensure the water supply is turned off before you start disassembling the tap.
2. Next, remove the tap’s handle and cover to expose the nut.
3. Using a wrench, loosen and remove the nut, then take out the existing washer.
4. Fit the new washer, reassemble the nut and handle, and turn the water back on to test.
When Ceramic Discs are to Blame
If your mixer tap operates with ceramic discs, the repair process is bit different. These taps control flow and temperature with two ceramic discs sliding over each other, with holes that align to allow water through. Over time, these can become scratched or accumulate mineral deposits, disrupting the seal. Repairing this type of tap generally involves replacing the entire cartridge containing the discs:
1. As with washer replacement, begin by turning off the water supply.
2. Remove the tap’s handle to expose the cartridge.
3. Note the orientation of the cartridge as you remove it—it’s important to install the new one in the same orientation.
4. Replace with a new cartridge, reattach the handle, and restore the water supply to test functionality.
Minor Fixes: Cleaning and Maintenance
Sometimes, a dripping tap can be resolved by simply cleaning the existing components. Mineral deposits from hard water are particularly troublesome and can build up on both washers and ceramic discs, impeding their functionality. Regularly cleaning your tap’s aerator (the small screen at the end of the spout) and soaking the cartridges or washers in a vinegar solution can significantly extend their life and performance.
Recognising When to Call a Professional
While many mixer tap issues can be resolved with DIY fixes, there are situations when calling a professional plumber is advisable:
- If the tap continues to drip after you’ve replaced the washers or cartridges.
- When there is significant damage to the tap mechanism itself.
- If you are not comfortable or equipped to do the repairs yourself.
Prevention: A Long-term Strategy
To prevent future problems, regular maintenance is key. This includes cleaning the tap regularly, inspecting it for wear and tear, and replacing components at the first sign of malfunction. Also, consider installing a water softener if you live in a hard water area to minimise mineral accumulation.
Conclusion
Addressing a dripping mixer tap promptly not only helps in water conservation but also prevents your utility bill from creeping up unnecessarily. While it’s often possible to fix the issue with a few tools and a bit of know-how, don’t hesitate to call in a professional if the problem persists. Understanding how your home’s plumbing works can empower you to maintain it better and tackle issues confidently as they arise.
