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Restore Water and Check for Leaks — Test for Leaks

Beginner3 hours

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Replace Your Bathroom Faucet: A Step-by-Step Guide · Step 6 of 6

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Now it's time to test your work. Slowly turn the main water supply valve back on. Then, slowly open the valve to the water heater. Listen for the sound of pipes refilling. Immediately and carefully inspect the connection you worked on for any signs of leaks or drips. If you see any water, shut off the supply immediately and re-check your connection.

Goal: Pressurize System and Verify Seal

  • Turn the water on slowly to allow the pressure to build gradually, which can help prevent sudden leaks at weak points.
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SharkBite Plumbing

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FAQs

What should I do if I can't find or turn the water shut-off valves under my sink?

If the shut-off valves are stuck or inaccessible, try applying penetrating oil and letting it sit. If they still won't budge, you'll need to turn off the main water supply to your house, usually located in your basement, garage, or outside. This is a crucial step to prevent flooding.

Are the two adjustable wrenches listed sufficient, or are there other tools that would make this job easier for a beginner?

While adjustable wrenches are essential, a basin wrench can be incredibly helpful for reaching and loosening stubborn nuts in tight spaces under the sink. A utility knife or scraper can also assist in cleaning the old sealant effectively. Always have a bucket and towels handy for drips.

How thoroughly do I need to clean the sink surface before installing the new faucet?

It's crucial to clean the sink surface thoroughly to remove all traces of old plumber's putty, silicone, and grime. Use a cleaning paste like 'THE PINK STUFF' and a sturdy sponge to ensure the surface is perfectly clean and dry. A clean surface ensures a proper, watertight seal for your new faucet.

What's the most common reason for leaks after installing a new faucet, and how can I prevent them?

The most common reasons for leaks are improperly tightened supply lines or mounting nuts, or an inadequate seal at the faucet base. Ensure all connections are hand-tightened first, then snugged with a wrench without overtightening. Always check manufacturer instructions for any specific sealants or gaskets required.