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Tools and Materials Needed

A homeowner installing a modern bathroom faucet using a basin wrench.

Before starting, gather these essentials:

  • Adjustable wrench
  • Basin wrench
  • Plumber’s tape (Teflon tape)
  • Bucket or towel
  • Silicone sealant or plumber’s putty
  • New faucet assembly and supply lines

Step 1: Turn Off the Water Supply

Locate and close the shut-off valves under the sink. Open the faucet to release any remaining water pressure.

Step 2: Remove the Old Faucet

Disconnect the water supply lines using a wrench. Unscrew mounting nuts beneath the sink and lift out the old faucet. Clean the sink surface before proceeding.

Step 3: Position the New Faucet

Insert the new faucet through the mounting holes. Apply a bead of silicone sealant or plumber’s putty around the base to prevent leaks.

Step 4: Secure the Faucet

From underneath the sink, thread and tighten the mounting nuts by hand, then use a basin wrench for final tightening. Ensure the faucet is level before tightening completely.

Step 5: Connect the Water Supply Lines

Attach the hot and cold water lines to the corresponding valves. Use plumber’s tape on threads to ensure a watertight seal. Tighten connections snugly, but avoid over-tightening.

Step 6: Test for Leaks

Turn the water supply back on and slowly open the faucet. Check all connections for leaks and tighten if necessary.

Step 7: Clean and Finish

Wipe away any excess sealant and clean the faucet. Ensure smooth water flow and check temperature balance.

Step-by-step faucet installation with water lines and tools displayed.

Conclusion

Installing a bathroom sink faucet is a simple home improvement project that saves time and money. With careful preparation and attention to detail, you can achieve a professional-quality installation that enhances your bathroom’s appearance and functionality.

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