Check for Leaks and Test Functionality
Part of project
Replace a Bathroom Faucet: Easy Guide · Step 5 of 5
1. **Shut Off the Water Supply:** Turn off the water supply valves under the sink, and briefly turn on the faucet to release residual pressure. 2. **Disconnect the Water Supply Lines:** Use an adjustable wrench to disconnect the water supply lines from the old faucet, catching any water with a bucket. 3. **Remove the Old Faucet:** Loosen the mounting nuts under the sink with a wrench or pliers to remove the old faucet, then clean the sink surface. 4. **Install the New Faucet, Drain, and P-trap:** Follow the manufacturer's instructions to install the new faucet, connect the water supply lines, install the drain assembly with gaskets, and install the P-trap. 5. **Check for Leaks and Test Functionality:** Turn the water supply back on slowly, checking all connections for leaks. Run hot and cold water to test the new faucet.
1.3M subscribers
FAQs
Do I really need specialized tools like a basin wrench to replace my bathroom faucet?
While an adjustable wrench can sometimes work, a basin wrench (like the Husky or TEKTON models mentioned) is highly recommended. It's specifically designed to reach and loosen/tighten mounting nuts in the tight, awkward spaces under your sink, making the job significantly easier and less frustrating for beginners.
What should I do if the water shut-off valves under my sink are stuck or won't turn off completely?
If the under-sink valves are stuck or faulty, you'll need to locate and turn off the main water supply to your entire house before proceeding. If you're uncomfortable doing this or if the main valve is also problematic, it's best to call a professional plumber to avoid potential water damage.
How can I ensure I don't have any leaks after installing my new faucet and drain?
To prevent leaks, make sure all threaded connections are hand-tightened first, then snugged with a wrench, avoiding overtightening which can crack parts. Always use plumber's tape (Teflon tape) on threaded supply line connections and plumber's putty or the provided gasket for the drain assembly to create a watertight seal.
Is it okay to reuse my old water supply lines with the new faucet, or should I replace them?
It is strongly recommended to replace old water supply lines with new ones when installing a new faucet. Old lines can degrade, become brittle, or leak after being disturbed, even if they look fine. Many new faucets come with fresh supply lines, or they are inexpensive to purchase separately.
Check for Leaks and Test Functionality
Part of project
Replace a Bathroom Faucet: Easy Guide · Step 5 of 5
1. **Shut Off the Water Supply:** Turn off the water supply valves under the sink, and briefly turn on the faucet to release residual pressure. 2. **Disconnect the Water Supply Lines:** Use an adjustable wrench to disconnect the water supply lines from the old faucet, catching any water with a bucket. 3. **Remove the Old Faucet:** Loosen the mounting nuts under the sink with a wrench or pliers to remove the old faucet, then clean the sink surface. 4. **Install the New Faucet, Drain, and P-trap:** Follow the manufacturer's instructions to install the new faucet, connect the water supply lines, install the drain assembly with gaskets, and install the P-trap. 5. **Check for Leaks and Test Functionality:** Turn the water supply back on slowly, checking all connections for leaks. Run hot and cold water to test the new faucet.
Frequently Asked Questions
Do I really need specialized tools like a basin wrench to replace my bathroom faucet?
While an adjustable wrench can sometimes work, a basin wrench (like the Husky or TEKTON models mentioned) is highly recommended. It's specifically designed to reach and loosen/tighten mounting nuts in the tight, awkward spaces under your sink, making the job significantly easier and less frustrating for beginners.
What should I do if the water shut-off valves under my sink are stuck or won't turn off completely?
If the under-sink valves are stuck or faulty, you'll need to locate and turn off the main water supply to your entire house before proceeding. If you're uncomfortable doing this or if the main valve is also problematic, it's best to call a professional plumber to avoid potential water damage.
How can I ensure I don't have any leaks after installing my new faucet and drain?
To prevent leaks, make sure all threaded connections are hand-tightened first, then snugged with a wrench, avoiding overtightening which can crack parts. Always use plumber's tape (Teflon tape) on threaded supply line connections and plumber's putty or the provided gasket for the drain assembly to create a watertight seal.
Is it okay to reuse my old water supply lines with the new faucet, or should I replace them?
It is strongly recommended to replace old water supply lines with new ones when installing a new faucet. Old lines can degrade, become brittle, or leak after being disturbed, even if they look fine. Many new faucets come with fresh supply lines, or they are inexpensive to purchase separately.