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How To Fix a Leaking Tap – DIY Guide

how to fix a leaking tap

There is nothing quite like the rhythmic “drip… drip… drip” of a faulty faucet to test your patience. Beyond the annoyance, a leaking tap is a silent drain on your wallet and the environment. In Melbourne, where water conservation is a priority, a single leaking tap can waste up to 2,000 litres of water a year.

At King and Sons Plumbing, we specialize in professional Leaking Tap Repairs Melbourne. However, we know that many of our local neighbors like to try their hand at home maintenance first. This guide is designed to show you how to fix a leaking tap for minor, common issues.

Important Note: Under Victorian regulations, major plumbing work must be performed by a licensed professional. This guide covers basic maintenance only. If your pipes are vibrating, your water pressure is irregular, or the leak persists after these steps, it’s time to call in the experts.


1. Preparation: What You’ll Need

Before you start searching for how to fix leaking tap components, ensure you have the right tools on hand. You don’t want to be halfway through a repair only to realize you’re missing a key wrench.

  • Adjustable spanner (wrench)

  • Screwdriver (Phillips and Flat-head)

  • Replacement parts: Jumper valves, O-rings, or a ceramic cartridge (depending on your tap type)

  • Plumber’s grease (silicone-based lubricant)

  • A soft cloth or rag

  • Old toothbrush (for cleaning mineral scale)


2. Step-by-Step: How to Fix a Leaking Tap (Standard Washer Taps)

Most older Melbourne homes feature traditional compression taps. If you are wondering how fix a leaking tap that has separate hot and cold handles, follow these steps:

Step 1: Turn Off the Water

Locate your mains water meter (usually in the front garden) and turn it off completely. Open the tap you’re working on to drain the remaining water in the pipes. Pro tip: Plug the sink so you don’t lose any tiny screws down the drain!

Step 2: Remove the Handle and Bonnet

Pop off the decorative cap (the bit that says ‘H’ or ‘C’) with a flat-head screwdriver. Unscrew the handle and lift it off. You will see a metal shroud or “bonnet”; use your spanner to unscrew this anti-clockwise.

Step 3: Replace the Jumper Valve and Washer

Once the spindle is removed, you’ll see the jumper valve (the small brass or plastic part with a rubber washer). Simply lift it out and replace it with a new one. This is the most common answer to how to fix a leaking bathroom tap or how to fix a leaking kitchen tap.

Step 4: Reassemble

Clean any grit or mineral buildup from the area with your toothbrush. Apply a small amount of plumber’s grease to the spindle thread, put everything back together, and tighten firmly (but don’t over-tighten, as this can crack the new washer).


3. The Modern Solution: How to Fix a Leaking Mixer Tap

Mixer taps—the single-handle style found in modern renovations—operate differently. They use a ceramic cartridge rather than a rubber washer. If you’re asking how do i fix a leaking mixer tap, the process is a bit more surgical.

How to Repair a Leaking Mixer Tap

  1. Remove the handle: There is usually a tiny grub screw hidden under the hot/cold indicator button. Use an Allen key to loosen it and lift the handle off.

  2. Access the cartridge: Unscrew the decorative dress ring by hand, then use a spanner to remove the large brass retaining nut.

  3. Swap the cartridge: Lift out the old cartridge. Tip: Take the old one to the hardware store! There are dozens of sizes, and you need an exact match.

  4. Install: Align the two “feet” on the bottom of the new cartridge with the holes in the tap body. Tighten the nut and replace the handle.

This method covers how to fix a leaking kitchen mixer tap and how to fix a leaking shower tap that uses a single lever.


4. Outdoor Issues: How to Fix a Leaking Outdoor Tap

Outdoor taps in Melbourne take a beating from the sun and frost. If you need to know how to fix a leaking outside tap, the process is nearly identical to the “Standard Washer” method above.

However, outdoor taps often leak from the “spindle” (the bit that turns) rather than the spout. If water is bubbling out from the handle while the tap is on, you need to replace the O-ring.

  • How to fix leaking outdoor tap O-rings: Once you unscrew the bonnet, slide the small rubber ring off the spindle and roll a new one into its place. Apply plenty of lubricant to help it survive the Melbourne weather.


5. Bathroom and Shower: How to Repair Leaking Shower Tap

Leaks in the shower can be deceptive. If water is dripping from the showerhead while the taps are off, the issue is usually the washer in the wall.

If you are trying to figure out how to repair leaking shower tap issues where the water is leaking behind the wall, stop immediately. This can lead to structural rot and mould. This is a situation where Leaking Tap Repairs Melbourne specialists should be called to ensure the “seats” inside the wall are still smooth and waterproof.


When DIY Becomes a Disaster: When to Call King and Sons

While knowing how do you fix a leaking mixer tap is a great skill, sometimes the problem is deeper than a $2 washer.

Call a professional if:

  • The “Seat” is Damaged: If you replace the washer and it still drips, the metal “seat” where the washer rests is likely corroded. We use a specialized “reseating” tool to grind it flat again.

  • The Tap is Seized: If you have to use extreme force to open the tap, you risk snapping the copper pipes behind the wall.

  • High Water Pressure: If multiple taps in your home are leaking at once, your Melbourne home might have high water pressure. We can install a Pressure Limiting Valve (PLV) to protect your entire plumbing system.

Why Choose King and Sons Plumbing?

As local Melbourne plumbers, we’ve seen every type of tap imaginable—from 50-year-old heritage brass to the latest high-tech European mixers. We provide fast, reliable Leaking Tap Repairs Melbourne with a focus on long-term fixes, not just temporary patches.


Summary: Quick Fix Guide

Issue Likely Culprit DIY Fix?
Drip from spout (off) Worn Washer / Jumper Valve Yes
Leak from handle (on) Faulty O-Ring Yes
Constant mixer leak Cracked Ceramic Cartridge Yes (Replacement)
Water leaking into wall Internal Valve Failure No – Call Plumber
High-pitched whistling High Water Pressure No – Call Plumber

Still have a drip?

Don’t let your money go down the drain. Call King and Sons Plumbing today!


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