Mount the New Faucet — Install the New Faucet Components
Part of project
How to Replace a Deck-Mount Garden Tub Faucet · Step 6 of 8
In this video
Carefully feed the new faucet's hoses and electronic cables through the mounting hole in the countertop. Ensure the faucet base is properly aligned and seated. From underneath the sink, slide the washer and mounting bracket up the faucet's shank. Thread the mounting screws or nuts onto the shank and tighten them by hand first, then use a wrench or screwdriver to fully secure the faucet so it doesn't move or rotate.
Goal: Mount new faucet
- Have someone hold the faucet in place from above while you tighten it from below to ensure it stays aligned.
Used in this video
- Screwdriver — Tightening the mounting screws
- Basin Wrench · optional — Tightening the mounting nut if a screwdriver isn't used
21K subscribers
FAQs
How challenging is replacing a deck-mount garden tub faucet for someone with limited plumbing experience, and why does it take up to 6 hours?
This project is rated intermediate primarily due to the often tight and awkward access under the tub deck, and the potential for seized or corroded plumbing components. The 6-hour estimate accounts for troubleshooting, the slow process of working in confined spaces, and thorough leak testing to ensure a secure installation.
Why are multiple types of wrenches listed, especially two basin wrenches, and are they all essential for this project?
Multiple wrenches, including two basin wrenches (telescoping and standard), are highly recommended. This ensures you have the correct tool to reach and properly grip various nut sizes and angles, especially the difficult-to-access mounting nuts under the tub deck. Having both types of basin wrenches can be crucial for different space constraints.
What are the most critical steps to prevent leaks and potential water damage during and after this faucet replacement?
The most critical steps include completely shutting off the main water supply before starting and confirming no water is flowing. When installing, use Teflon tape on all threaded pipe connections (not on compression fittings unless specified) and tighten all nuts firmly but without overtightening. After installation, test for leaks thoroughly over several hours, checking all connections for drips.
What should I do if the old faucet nuts or supply lines are seized and won't loosen, or if I encounter heavy corrosion?
If parts are seized, apply penetrating oil like KROIL generously and let it sit for at least 15-30 minutes to work. Use firm, steady pressure with your basin wrench or adjustable wrench. If components are severely corroded or refuse to budge, you may need to carefully cut them away using a hacksaw, taking extreme caution to avoid damaging the tub or surrounding plumbing.
Mount the New Faucet — Install the New Faucet Components
Part of project
How to Replace a Deck-Mount Garden Tub Faucet · Step 6 of 8
In this video
Carefully feed the new faucet's hoses and electronic cables through the mounting hole in the countertop. Ensure the faucet base is properly aligned and seated. From underneath the sink, slide the washer and mounting bracket up the faucet's shank. Thread the mounting screws or nuts onto the shank and tighten them by hand first, then use a wrench or screwdriver to fully secure the faucet so it doesn't move or rotate.
Goal: Mount new faucet
- Have someone hold the faucet in place from above while you tighten it from below to ensure it stays aligned.
Used in this video
- Screwdriver — Tightening the mounting screws
- Basin Wrench · optional — Tightening the mounting nut if a screwdriver isn't used
Frequently Asked Questions
How challenging is replacing a deck-mount garden tub faucet for someone with limited plumbing experience, and why does it take up to 6 hours?
This project is rated intermediate primarily due to the often tight and awkward access under the tub deck, and the potential for seized or corroded plumbing components. The 6-hour estimate accounts for troubleshooting, the slow process of working in confined spaces, and thorough leak testing to ensure a secure installation.
Why are multiple types of wrenches listed, especially two basin wrenches, and are they all essential for this project?
Multiple wrenches, including two basin wrenches (telescoping and standard), are highly recommended. This ensures you have the correct tool to reach and properly grip various nut sizes and angles, especially the difficult-to-access mounting nuts under the tub deck. Having both types of basin wrenches can be crucial for different space constraints.
What are the most critical steps to prevent leaks and potential water damage during and after this faucet replacement?
The most critical steps include completely shutting off the main water supply before starting and confirming no water is flowing. When installing, use Teflon tape on all threaded pipe connections (not on compression fittings unless specified) and tighten all nuts firmly but without overtightening. After installation, test for leaks thoroughly over several hours, checking all connections for drips.
What should I do if the old faucet nuts or supply lines are seized and won't loosen, or if I encounter heavy corrosion?
If parts are seized, apply penetrating oil like KROIL generously and let it sit for at least 15-30 minutes to work. Use firm, steady pressure with your basin wrench or adjustable wrench. If components are severely corroded or refuse to budge, you may need to carefully cut them away using a hacksaw, taking extreme caution to avoid damaging the tub or surrounding plumbing.