How to Fix a Dripping Tap: A Complete Step-by-Step Guide
Author: Allen Huang
Date: November 7, 2025
Table of Contents
- Why Is My Kitchen Tap Dripping?
- Tools You'll Need to Fix a Dripping Tap
- Step-by-Step: How to Stop a Dripping Tap
- Cleaning or Replacing the Tap Cartridge
- When to Replace Your Tap Instead
- Choosing an Instant Boiling Water Tap Upgrade
- FAQs
- Contact Us – OEM & ODM Solutions
A dripping tap might look like a minor issue, but over time, that constant drip, drip, drip can waste liters of water and raise your bills. The good news? It's usually easy to fix.
Most kitchen taps - including instant boiling water taps - drip because of one of the following:
| Common Cause | Description |
|---|---|
| Worn-out Washer | The rubber or silicone washer has deteriorated and no longer seals properly. |
| Damaged Cartridge | Ceramic disc cartridges can crack or collect limescale, preventing tight closure. |
| Loose O-Ring | The O-ring around the spout or handle can loosen, allowing water to escape. |
| High Water Pressure | Excess pressure inside your tap may force water through tiny gaps. |
| Limescale Build-up | Especially in hard-water areas, mineral deposits block smooth operation. |
If the issue isn't easily visible or you're unsure, you can always contact a professional plumber - or your tap manufacturer - for support.
Before starting your DIY fix, make sure you have these tools ready:
| Tool | Purpose |
|---|---|
| Adjustable spanner | To loosen or tighten the tap cartridge |
| Screwdriver / Allen key | To remove the handle screw |
| Replacement washers or O-rings | For sealing leaks |
| Towels or rags | To soak up any water |
| PTFE tape (optional) | For extra sealing on threads |
| Vinegar & warm water | To clean the limescale from the cartridge |
Follow these steps to stop the drip safely and effectively:
(1). Turn off the water supply.
Locate the stopcock under your sink and shut off the water. Turn on the tap to drain any remaining water.
(2). Plug the sink.
This simple step prevents screws or small parts from falling down the drain.
(3). Remove the handle.
Find the small screw under your tap handle. Use an Allen key or screwdriver to loosen it, then gently lift off the handle.
(4). Take out the cartridge.
Using your spanner, remove the cartridge from the tap body. Keep a towel handy for any water left inside.
(5). Inspect and clean.
Check the cartridge for limescale or cracks. If dirty, soak it in a 50/50 vinegar-water mix for 15 minutes, rinse, and dry it.
(6). Reassemble the tap.
Fit the cleaned or new cartridge, tighten it gently, and reattach the handle.
(7). Turn the water back on and test.
Run the tap and check for drips. If it's still leaking, the cartridge may need a full replacement.
The ceramic disc cartridge is the heart of most modern mixers and instant boiling water taps.
If cleaning doesn't fix the issue, you can easily replace it. When buying a new cartridge, make sure to match:
| Cartridge Type | Size (mm) | Suitable For |
|---|---|---|
| Standard ceramic disc | 35mm / 40mm | Most kitchen mixer taps |
| Boiling water tap cartridge | Custom-fit | Instant boiling water tap systems |
Always check your manufacturer's model guide or contact their support team before ordering.
Sometimes a dripping tap means your tap has reached the end of its lifespan.
If your faucet is corroded, cracked, or the parts are no longer available, replacing it may be more cost-effective.
At Xiamen Smart Water Technology Co., Ltd., we design and manufacture a full range of instant boiling water taps, 3-in-1 hot water taps, and under-sink drinking water systems. Our ODM service supports global brands with customized faucet design, production, and branding.
If you're ready for an upgrade, consider switching to an instant boiling water tap.
These taps deliver boiling, hot, and cold filtered water instantly, saving time and energy - perfect for modern kitchens.
Key Benefits:
- Instant 100°C boiling water for tea, coffee, or cooking
- Built-in child safety lock
- Space-saving under-sink tank
- Energy-efficient design
- Stylish stainless-steel finish options
Explore our ODM solutions for your brand: Instant Boiling Water Tap Manufacturer
Q1: Why does my tap drip even after I replaced the washer?
A: The problem might be the ceramic cartridge or the O-ring. Check both for cracks or dirt.
Q2: Can I use the same steps for a boiling water tap?
A: Mostly yes - but boiling water taps include extra safety and heating components. Always follow your manufacturer's maintenance guide.
Q3: How often should I replace my tap cartridge?
A: Every 2–3 years is typical, depending on water hardness and usage.
Q4: What's the best way to prevent drips in the future?
A: Regularly clean your tap's aerator and cartridge, and avoid overtightening the handles.
At Xiamen Smart Water Technology Co., Ltd., we're more than just a manufacturer - we're your trusted ODM partner for premium instant boiling water tap systems.
✅ Over 15 years of manufacturing experience
✅ Full ODM / OEM services for international brands
✅ In-house R&D and patented technology
✅ Certified materials and strict quality control
👉 Contact us today to discuss your brand's custom instant boiling water tap solution or wholesale partnership.
Website: www.kitchenwatertap.com