That persistent drip-drip sound from your bathroom faucet is more than just annoying—it represents wasted water and higher utility bills. Many homeowners assume a leaking mixer tap requires complete replacement, but in most cases, the solution is far simpler.

Industry experts note that approximately 90% of mixer tap leaks stem from just two replaceable components: the cartridge or washer. With basic tools and proper guidance, most homeowners can complete this repair themselves in under an hour.

Mixer taps typically develop leaks in one of two locations, each indicating a different underlying cause:

• Handle area leaks: Water dripping from around the handle usually signals a worn cartridge. This critical component controls water flow and mixing, with rubber seals that degrade over time.
• Spout leaks: Dripping from the faucet outlet typically indicates a deteriorated washer. This small rubber ring creates the watertight seal at the spout's base.

Before beginning repairs, gather these essential items:

• Crosshead and flathead screwdrivers
• Adjustable wrench
• Replacement cartridge or washer (model-specific)
• Clean cloth for drying components

Proper part identification is crucial when purchasing replacements. Taking the old component to a hardware store ensures accurate matching of size and threading.

1. Shut off water supply: Locate and close the main water valve before disassembly.

2. Remove handle: Unscrew the handle's retaining screw (often hidden under a decorative cap) and carefully lift the handle off.

3. Replace faulty component: For cartridge replacement, use the adjustable wrench to unscrew the retaining nut and extract the old unit. For washer replacement, unscrew the spout and remove the old washer from its seating.

4. Reassemble components: Install the new part in reverse order of removal, ensuring proper alignment of all components.

5. Restore water supply: Gradually reopen the main valve and check for leaks. Tighten connections if necessary, but avoid over-tightening.

This straightforward repair typically resolves most dripping faucet issues while saving the cost of professional plumbing services. Regular maintenance of these components can extend a faucet's lifespan by several years.