Project Guide

How to Replace Cartridge Sink Faucets

1
TURN OFF WATER
Turn off water - How Replace Cartridge Sink Faucets
  • Turning off the water at the shut off valves under the sink.
  • Fully open the faucet to both the hot and cold positions to allow any residual water to escape.
2
PRY OFF HANDLE
Remove faucet handle - How Replace Cartridge Sink Faucets

Pry off the handle cap using a small flat screwdriver.

3
REMOVE HANDLE FROM ASSEMBLY
Remove faucet handle - How Replace Cartridge Sink Faucets

Unscrew the screw on the handle and then lift the handle up to remove it from the assembly.

4
REMOVE THE RETAINING NUT
Remove retaining clip - How Replace Cartridge Sink Faucets
  • Use water pump pliers to remove the plastic retaining nut.
  • Lift the faucet spout straight up to remove it.
5
REMOVE THE RETAINING CLIP
Remove retaining clip - How Replace Cartridge Sink Faucets

Pull out any retaining clip using needle nose pliers.

6
REMOVE THE O-RING
Remove the O-ring - How Replace Cartridge Sink Faucets
  • Remove the O-ring from the housing, using a screwdriver if necessary. Take this with you to the store to make identifying the replacement that much easier.
  • If you can’t slip the O-ring from its groove, cut it with a utility knife.
  • Clean any debris from the faucet housing with a soft cloth.
7
REPLACE THE CARTRIDGE
Replace the cartridge - How Replace Cartridge Sink Faucets
  • Cartridges come in many shapes and sizes, and the easiest way to find the right replacement part is to know the name of the faucet’s manufacturer and the faucet’s model number. If you’re not sure, take the old cartridge you’re replacing to the store so you can use a reference guide to match it to the exact cartridge you need.
  • To replace the cartridge, grip the top of the cartridge with pliers and pull straight up to remove it.
  • On some models of faucet you may have to remove the cartridge with a specialized tool, which will be indicated on manufacturer’s instructions. 
  • With the cartridge out, inspect O-rings for any damage.
  • Replace all rings with the matching size.
  • If the cartridge has any damage, install a new cartridge making sure it is aligned correctly.
8
REINSTALL THE O-RING
Reinstall the O-ring - How Replace Cartridge Sink Faucets
  • Coat the new O-ring with silicone grease and install on the faucet cylinder.
  • Re-attach the spout and insert the retaining clip and screw on the plastic retaining nut.
  • Place the handle on the assembly, secure it with the screw you removed earlier, and replace the handle cap.
  • Place the handle in the on position and slowly turn the water back on at the valve.
  • Check for any leaks.