How To Install A Single Lever Bathroom Faucet

How To Install a Single Lever Bathroom Faucet

Installing a single lever bathroom faucet can be a rewarding DIY project for homeowners comfortable with basic plumbing skills. This type of faucet offers convenience and a modern aesthetic compared to traditional two-handle faucets. This guide provides step-by-step instructions to ensure a successful and leak-free installation.

Step 1: Gather Necessary Tools and Materials

Before starting the installation, ensure you have the following tools and materials readily available:

Adjustable wrench
Channel lock pliers
Screwdriver (Phillips and flathead)
Plumbers tape
Pipe thread sealant
Level
Basin wrench
New single lever bathroom faucet
Matching mounting hardware (if necessary)
Optional: Replacement supply lines (if needed)

Having all required materials on hand will streamline the installation process and minimize interruptions.

Step 2: Shut Off Water Supply and Drain Existing Faucet

Safety is paramount. Begin by turning off the water supply to the bathroom sink. Locate the shut-off valves beneath the sink or in the main water supply line. Turn the valves clockwise until they are fully closed. To ensure the water is completely shut off, open the sink faucet and check for any leaks.

Next, drain any remaining water from the faucet and supply lines. This can be achieved by opening the drain stopper and letting any water escape. Once the sink is empty, you can begin removing the existing faucet.

Step 3: Remove Old Faucet and Clean Sink Base

Using an adjustable wrench or channel lock pliers, loosen and remove the nuts securing the old faucet to the sink. Pay attention to the order of parts to ensure proper reassembly. Once the faucet is disconnected, carefully remove the supply lines by twisting them counterclockwise. If the supply lines are old or damaged, consider replacing them with new ones.

After removing the old faucet, thoroughly clean the sink base around the mounting holes. Remove any debris or old sealant that could interfere with the new faucet's installation.

Step 4: Install New Faucet Base and Supply Lines

Carefully align the new faucet base over the sink's mounting holes. Ensure the faucet is level using a level. Apply pipe thread sealant to the threaded ends of the faucet's supply lines. Thread the supply lines into the faucet base, making sure they are securely attached. If the faucet comes with mounting hardware, use the appropriate screws and nuts to secure the base to the sink.

Step 5: Connect Supply Lines and Test for Leaks

Connect the supply lines to the water shut-off valves. Wrap the threads of the shut-off valves with plumber's tape to prevent leaks. Hand-tighten the connections and then use an adjustable wrench to secure them further. Turn the water back on slowly and check for any leaks at the connections. If there are leaks, tighten the connections or re-apply plumber's tape as needed.

Step 6: Install Faucet Handle and Test Functionality

With the supply lines connected and leak-free, install the faucet handle according to the manufacturer's instructions. This may involve attaching the handle to the stem or cartridge. Once the handle is in place, test the functionality of the faucet by turning the handle to adjust the water flow and temperature.