How to Change a Tap Washer: Step-by-Step DIY Guide
A dripping tap, mostly caused by a worn washer – the small rubber disc inside your tap that presses against the metal seat to stop water flow – is one of the easiest plumbing jobs you can tackle yourself. It helps you conserve water, save money, and often avoid the need to call a plumber. But there’s a catch: not every tap uses a washer. Modern taps with ceramic or cartridge mechanisms work differently, and trying to replace a washer in them won’t fix the leak. So, before you start, it’s important to check your tap type and make sure a washer replacement is the right solution. In this guide, we’ll show you step by step how to tell if your tap has a washer, how to replace it properly, and when it’s best to call in a plumber, so your tap works smoothly again. TL;DR Confirm Your Tap Type: Is It a Compression Tap? Only compression taps, which are traditional old taps where you turn the handle several times to open or close the water, use a rubber washer to stop the water flow. Modern taps, like ceramic disc or quarter-turn models, work differently: they use two smooth ceramic plates to control water, so the repair steps are completely different. You can figure out your tap type just by turning the handle. You probably have a compression tap if: That tightening feeling is the compression action – the rubber washer is pressed firmly against the metal seat, stopping the water flow. You likely have a ceramic or quarter-turn tap if: If you’ve confirmed it’s a compression tap, you can replace the washer in a few easy steps that we have covered below. Gather The Tools and Parts for the Job Before pulling the tap apart, set up a small workspace on your vanity or kitchen bench with everything you’ll need. Having everything ready turns this into a quick 10–15-minute repair instead of a drawn-out job. Your Essential Toolkit Parts to Have On Hand Now that you have your tools and replacement parts ready, you can start the actual job. Step 1: Shut off the water and drain the line Before opening the tap, you need to stop water from reaching it. This prevents water from spraying out once the tap body is loosened. In most Townsville homes, the main water shut-off point is located at the water metre box out the front of the property, usually near the footpath or nature strip. Lift the lid of the plastic or concrete box and turn the metre isolation valve clockwise until it stops. This shuts off the water supply to your entire house. If you live in an apartment or a newer home, you may have small isolation valves under the sink. These look like short chrome taps on the hot and cold pipes. Turn them clockwise to close the water flow to the tap. Because the local water contains higher mineral content, these small valves can sometimes stick or fail to close fully. In such situations, please do not force it. Simply shut off the main metre valve. Once the water supply is off: Step 2: Remove The Tap Handle Next, remove the tap handle to access the internal parts. Most traditional taps have a decorative cap on top, which you can gently pry off using your fingernail or a thin flat-head screwdriver. To avoid scratching your chrome-plated handle or flange, wrap the jaws of your spanner or the tip of your screwdriver in a thin cloth before touching the metal. Underneath the cap, you’ll find a screw holding the handle in place. Use the screwdriver to remove it, and the handle should slide straight off. Some taps, especially slightly newer models, use a small grub screw (a tiny screw set into the handle) instead of a top screw. These are normally hidden on the side or underneath the handle and require an Allen key (a small L-shaped hex key) to loosen. Often, minerals in the water can form crusty deposits that make the handle stick to the spindle (the central metal shaft inside the tap that the handle turns to open or close the water). If it won’t come off easily: Step 3: Remove the Bonnet/Nut and Lift Out The Spindle With the handle removed, you’ll see the brass bonnet – the large nut that holds the internal parts of the tap in place. Inside this bonnet sits the spindle, the threaded shaft that moves up and down when you turn the tap. Before grabbing your spanner to remove the nut, check the spindle’s position. If it is fully wound down (fully closed), the internal pressure can lock the bonnet nut, making it very difficult to turn. Use your fingers or pliers to twist the spindle slightly anti-clockwise so it sits roughly halfway open. This relieves pressure inside the tap and makes the bonnet much easier to remove. Now place your spanner snugly around the bonnet nut and hold the tap body or spout firmly with your other hand to keep the fixture steady. Turn the spanner anti-clockwise with steady pressure until the bonnet nut loosens, and then finish unscrewing it by hand. Once the bonnet is off, lift the spindle straight out of the tap body. Pro tip: As you remove the parts, place them on a towel in the same order you removed them. It’s also a good idea to take a quick photo. That way, you have a simple reference to help you put everything back together correctly later. Step 4: Inspect the Tap Seat and Retrieve The Valve Once the spindle is removed, you can clearly see inside the tap body. At this stage, there are two things to do: 1. Retrieve the jumper valve: The jumper valve is a small, removable brass plug that sits between the spindle and the seat and holds the rubber washer you are here to change. Check the bottom of the spindle you removed. If the brass









