How to Fix a Leaking Tap
That persistent drip, drip, drip from your tap can be more than just annoying, it can waste water and increase your bills. But don't worry, many leaking taps can be fixed with a few simple steps.
This guide will walk you through the common causes of leaking taps and provide clear, step by step instructions on how to fix them yourself. Of course, if you're ever unsure or encounter a more complex issue, GRH Plumbing is always here to help.
Common Causes of Leaking Taps
To stop your tap from dripping, you need to know why it's leaking. Here are the most common causes:
Worn Washers
Worn washers are the most frequent cause of dripping taps, especially standard taps with separate hot and cold handles.
Washers are small, rubber or silicone rings that create a seal between the tap's internal components. Over time, friction and water pressure cause them to wear out, crack, or flatten, leading to leaks.
Damaged O-Rings
O-rings are similar to washers but are mostly used to seal connections between moving parts, like the tap's spout or handle. They can become brittle, crack, or break, causing leaks around the base of the spout or handle.
Corroded Valve Seats
The valve seat is the surface against which the washer presses to create a seal. If the valve seat becomes corroded or damaged, it won't form a proper seal, resulting in a leak.
Loose or Damaged Spindles
The spindle is the stem that connects the tap handle to the valve mechanism. If the spindle becomes loose or damaged, it can cause leaks around the handle.
Leaking Handles
Leaks originating from the handle often indicate a problem with the O-rings, spindles, or the handle itself.
Cracked Tap Seats
Over time and with pressure, the tap seat itself can crack, causing water to escape.
Leaking at the Base
When the tap is leaking where it meets the sink or countertop, it can be due to a faulty seal or loose connections.
By identifying the source of the leak, you'll be better equipped to choose the right repair method. Remember, if you're unsure or encounter a complex issue, it's always best to ask a professional plumber.
Step by Step Guides for Common Tap Repairs
Now that you've identified the type of tap and the potential cause of the leak, let's get down to fixing it! Here are some step by step guides for common tap repairs.
Remember to always turn off the water supply to the tap before you begin.
How To Fix a Tap By Changing a Washer or O-Ring
1️⃣ Turn off the water supply
Locate the water shut off valves under your sink or behind the tap. Turn them clockwise to shut off the water.
2️⃣ Drain the remaining water
Turn on the tap to drain any remaining water in the line.
3️⃣ Disassemble the tap
- Remove the decorative cap on the tap handle (usually pops off or unscrews).
- Unscrew the screw holding the handle in place.
- Carefully pull the handle off.
- Unscrew the bonnet nut (the large nut holding the tap mechanism).
- Remove the spindle.
4️⃣ Replace the washer:
- Locate the old washer at the bottom of the spindle.
- Remove the old washer.
- Install the new washer of the same size and type.
5️⃣ Reassemble the tap:
- Reinsert the spindle.
- Tighten the bonnet nut.
- Reattach the handle and secure it with the screw.
- Replace the decorative cap.
6️⃣ Turn the water back on
Slowly turn the water supply valves counterclockwise.
7️⃣ Test the tap
Check for leaks and ensure the tap is working correctly.
Here are the main components of a tap:
How to Fix a Leaking Mixer Tap
1️⃣ Turn off the water supply
Locate the water shut off valves and turn them off.
2️⃣ Drain the remaining water
Turn on the tap to drain any remaining water.
3️⃣ Disassemble the tap
- Remove the decorative cap on the handle.
- Unscrew the screw holding the handle.
- Pull the handle off.
- Some mixer taps will have a retaining nut that must be removed.
- Remove the old cartridge.
4️⃣ Replace the cartridge
- Insert the new cartridge, ensuring it's aligned correctly.
- Reassemble the tap in reverse order.
5️⃣ Test the tap
Turn the water back on and check for leaks.
How To Fix a Leaking Spindle or Leaking Handle
1️⃣ Turn off the water supply.
2️⃣ Disassemble the tap handle:
Follow the steps from the washer changing or mixer tap section to remove the handle.
3️⃣ Inspect the spindle and O-rings
Check for damage, cracks, or wear.
4️⃣ Replace the damaged parts:
- If the spindle is damaged, replace it with a new one.
- If the O-rings are damaged, carefully remove and replace them.
5️⃣ Reassemble the tap
Reassemble the tap in reverse order.
6️⃣ Test the tap
Turn the water back on and check for leaks.
How to Reseat a Valve Seat
1️⃣ Turn off the water supply.
2️⃣ Disassemble the tap
Remove the handle and spindle as described in the washer changing section.
3️⃣ Inspect the valve seat
Check for corrosion or damage.
4️⃣ Reseat the valve seat
Use the valve seat dresser to smooth out any imperfections. Follow the tool manufacturer's instructions.
5️⃣ Reassemble the tap
Reassemble the tap in reverse order.
6️⃣ Test the tap
Turn the water back on and check for leaks.
When to Call a Professional Plumber
While this guide provides solutions for common tap leaks, some situations require a professional touch. If your tap keeps dripping despite your DIY repair efforts, the problem might be more complex than it seems. Similarly, corroded pipes, damaged plumbing systems, or leaks in quarter turn taps often need specialised tools and expertise.
Don't hesitate to call GRH Plumbing if you're unsure or uncomfortable with any DIY repairs. It's always better to be safe than sorry and prevent further damage. Remember, GRH Plumbing is here to help with all your plumbing needs, so don't let a leaking tap cause unnecessary water waste and expense. Contact us today on 1300 643 850 for fast and reliable tap repairs.
Related articles:
Why do I have low water pressure in my home?
References:
Sydney Water - How to use less water in your home and garden
Sydney Water - Leak detection
Better Homes and Gardens - How to fix your leaking taps
Home Hardware - Fixing a Leaking Tap
Bunnings Workshop - How to fix a dripping tap?