A dripping tap has a way of getting on your nerves. At first, it’s just a tiny sound in the background. Drip. Drip. Then a few days later, you can’t stop hearing it. If you’re looking to replace a tap washer, the good news is that this is one of the most common plumbing jobs homeowners can tackle.
A leaking tap is usually caused by a worn tap washer in many homes of London. The small rubber part that is inside the tap, can get worn down over time, and water will leak through even if the tap is shut completely, regardless of whether it is a bathroom basin, kitchen sink or bathtub tap.
Let’s take a look at the root causes of the issue, the solutions and when to get the professionals in on the action.
Why Do Tap Washers Wear Out?
Every time you turn a tap on and off, the washer inside compresses against the valve seat. Over months and years, that constant pressure takes its toll.
Common causes include:
- Natural wear and tear
- Hard water deposits
- Overtightening taps
- Ageing plumbing fixtures
- Poor-quality replacement parts
In London, hard water can be particularly tough on plumbing components, including bath tap washers, bathroom tap washer fittings, and kitchen tap washers.
Signs You Need to Replace a Tap Washer
Not every leak is caused by a washer, but it’s often the first thing to check.
Look for these warning signs:
- Dripping water from the spout
- Difficulty turning the tap off completely
- Squeaking sounds when operating the tap
- Reduced water flow
- Water pooling around the base of the tap
If the tap continues dripping after being fully closed, chances are a worn rubber washer is responsible.
Tools You’ll Need
Before you start, gather a few basic tools:
- Adjustable spanner
- Screwdriver
- Replacement tap washer
- Cloth or towel
- Silicone grease
- Small container for screws
Nothing fancy here. Most homeowners already have these tools somewhere in the garage or under the sink.
Step 1: Turn Off the Water Supply
This is likely the most crucial step.
Find the isolation valve under the faucet or turn off the main water.
Drain out any water, then opening the tap fully.
Keep a towel nearby because a little water almost always finds a way out.
Step 2: Remove the Tap Head
In most taps the fixing screw is covered up by a decorative cap.
Carefully pop off the cap with a small screwdriver.
Remove the fixing screw under and remove tap handle.
You should now see the internal valve assembly.
Step 3: Remove the Tap Valve
Carefully remove the valve assembly with an adjustable spanner.
Rotate it anti-clockwise to loosen it.
Inside, you’ll find the rubber washer attached to the bottom of the valve.
This tiny piece is usually the culprit.
Step 4: Inspect the Washer
Take a close look at the washer.
If it’s:
- Cracked
- Flattened
- Hardened
- Split
Then it needs replacing.
Check it with the new washer to make sure you’re using the correct size.
When installing kitchen tap washers, washer kitchen taps, or older bath tap washers, it’s important to get the size correct.
Step 5: Install the New Washer
Take out and install the new washer.
Some washers have a small screw fitting into them. Others just shove themselves into a corner.
If necessary, use silicone grease as directed by the manufacturer.
This helps extend the life of the new washer.
Step 6: Reassemble the Tap
Replace the valve assembly.
Tighten it securely but don’t over tighten it.
Re-attach the handle, replace the fixing screw and snap the decorative cap back in place.
Now you’re ready to restore the water supply.
Step 7: Test the Tap
Turn the water back on slowly.
Open and close the tap several times.
Check for:
- Drips
- Leaks around the handle
- Smooth operation
If the dripping has stopped, congratulations. You’ve successfully managed to replace a tap washer.
How to Stop a Tap from Dripping
If replacing the washer doesn’t solve the problem, other components may be involved.
Possible causes include:
Damaged Valve Seat
Over time, the valve seat can become rough or corroded.
A new washer won’t seal properly against a damaged surface.
Worn O-Rings
O-rings help create watertight seals around moving parts.
When they wear out, leaks can develop around the tap handle.
High Water Pressure
Excessive pressure can force water past seals even when the tap is closed.
Cartridge Problems
Modern mixer taps often use cartridges instead of traditional washers.
In these cases, the cartridge may need replacing.
Common Mistakes Homeowners Make
It’s easy to make small mistakes during DIY plumbing repairs.
Some common ones include:
- Forgetting to turn off the water
- Buying the wrong washer size
- Overtightening fittings
- Losing small screws
- Damaging decorative tap finishes
Taking your time usually prevents most of these issues.
When to Call a Professional Plumber
Sometimes a dripping tap is only part of a larger plumbing issue.
You may want professional help if:
- The leak continues after replacing the washer
- The tap body is damaged
- Pipework is leaking underneath
- Water pressure issues exist
- The tap is heavily corroded
At that point, expert advice can save time and prevent further damage.
Plumr Is Best for Replace a Tap Washer Quickly
If you’d rather avoid dismantling taps yourself, Plumr provides professional plumbing services across London.
Their experienced plumbers can:
- Replace a tap washer
- Repair leaking taps
- Fix kitchen and bathroom plumbing issues
- Install new taps
- Diagnose hidden leaks
Sometimes a five-minute professional repair is worth every penny.
FAQs
1. How long does it take to replace a tap washer?
The replacement process for most tap washers will require anywhere from 20 to 45 minutes to perform, depending on the condition of the tap as well as the type of tap.
2. Can a worn tap washer increase my water bill?
Yes. A steady trickle can waste a lot of water in the long run!
3. Are kitchen tap washers and bathroom tap washers the same?
Not always. Tap size of washer varies from different taps so, please check the compatibility of the tap before buying it.
4. Why is my tap still dripping after replacing the washer?
The issue might be due to the valve seat, cartridge, O-ring or the water pressure, rather than the washer itself.
