DIY Repair Guide for Leaking Kitchen Faucets

DIY Repair Guide for Leaking Kitchen Faucets

By Smart Water Tech  Allen Huang   2025-01-03

Kitchen faucets play an important role in our daily lives, providing convenience for our kitchen life. Faucet leakage is a common problem. The following are some reasons for kitchen faucet leakage and DIY repair methods.

1. Aging of the Sealing Ring

• Frequent use causes wear and tear, leading to a loss of sealing performance.
• Result: Water leakage around the faucet base or handle.

2. Wear of the Valve Core

• The valve core controls water flow but can wear out over time.
• Result: Continuous water leakage from the faucet spout.

3. Loose Connection

• Loose threading at the faucet-water pipe connection or aged sealant can cause leaks.
• Result: Water seepage from joints and fittings.

4. Internal Scaling

• Water impurities cause buildup inside the faucet, affecting sealing.
• Result: Dripping or inconsistent water flow.

5. Worn Axial Gasket

• The axial gasket may wear out, leading to leaks at the water outlet.

6. Worn Triangular Gasket

• If the triangular gasket in the gland is damaged, leaks occur below the faucet bolt.

7. Problems with Cap Nuts

• Loose cap nuts or damaged gaskets cause leaks at the pipe joints.

Essential Tools:

• Wrench: Disassemble and install various faucet parts.
• Screwdriver: Loosen hidden screws under buttons or plastic covers.
• Pliers: Remove gland bolts and axial gaskets easily.
• Cleaning Agent: Remove dirt and scale buildup inside the faucet.
• New Seals: Replacement parts such as sealing rings, valve cores, and gaskets.

1. Replace the Sealing Ring

• Turn off the water source.
• Disassemble the faucet and remove the aged sealing ring.
• Install a new sealing ring and reassemble the faucet.

2. Replace the Valve Core

• Turn off the water source.
• Remove the faucet handle and extract the worn valve core.
• Insert a new valve core and reassemble the faucet.

3. Fix the Connection

• Turn off the water source.
• Tighten loose threads using a wrench.
• Apply fresh sealant if the old one has degraded.

4. Clean the Faucet

• Turn off the water source.
• Disassemble and soak the faucet in vinegar water.
• Use a brush to remove scale and debris, then reassemble.

5. Repair Water Leakage at the Water Outlet

• Loosen the gland bolt with pliers.
• Remove and replace the worn axial gasket.

6. Repair Leakage Below the Faucet Bolt

• Loosen the screw and remove the bolt head.
• Remove the gland and replace the triangular sealing pad.

7. Fix Leakage at the Pipe Joint

• Tighten the cap nut or replace the U-shaped gasket.
• If the pipe is damaged, consider replacing it entirely.

Regular Inspection: Check sealing rings, valve cores, and joints periodically.

Proper Usage: Avoid excessive force when turning the faucet on and off.

Control Water Pressure: Prevent damage by maintaining an appropriate pressure level.

❌ Reusing old washers or O-rings.

❌ Forcing stuck parts without soaking in vinegar.

❌ Ignoring manufacturer instructions.

Q: What if screws are rusted and won't turn?

A: Apply penetrating oil (e.g., WD-40), wait, and try again.

Q: How do I know if the valve core needs replacement?

A: If tightening doesn't stop the leak and visible wear or deformation is present, replace it.

Q: What if the faucet still leaks after replacing the sealing ring?

A: Ensure the new ring matches the original and is installed correctly.

Q: What if there are no visible damaged parts but still leaks?

A: Check for fine cracks or holes, and use sealant to cover potential leak points.

Q: Why is my faucet water flow weak or split?

A: The aerator might be clogged. Remove and clean the filter.

Q: Why does my faucet make noise?

A: High water pressure, loose pipes, or obstructions may cause noise. Reduce pressure and secure pipes.

Q: What if the faucet handle is loose?

A: Tighten the handle screw using a wrench or pliers.

Q: Why does my faucet still drip after being turned off?

A: There may be debris blocking the seal. Remove and clean the valve components.

By following this guide, you can efficiently repair common faucet leaks and extend the lifespan of your kitchen faucet.