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Turn Off Water Supply and Prepare Work Area — Preparation and Water Shut-off

Intermediate6 hours

Part of project

How to Replace a Deck-Mount Garden Tub Faucet · Step 1 of 8

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In this video

Locate the main water shut-off valve for your house, often found behind an access panel. Turn the lever so it is perpendicular to the pipe to cut off the water flow. Go to a sink and open the faucet to drain any remaining water from the pipes. Before working in the tub, close the drain or cover it with a towel to prevent any small parts from being lost.

Goal: Plumbing Pipes Repair

  • Ensure the water is completely off by checking a faucet. Failure to do so can result in significant water damage.
  • Covering the drain is a simple step that can save you from the major headache of retrieving a lost part.

Used in this video

  • Towel (brand: Unspecified, Material: Microfiber)Covering the bathtub drain to prevent parts from falling in.
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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.

Transcript
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For this project, you need to shut off the water to your house. There should be a lever next to a pipe. You just reach in, grab that lever, and pull until it is perpendicular with the pipe. It's going to take a bit of effort to get that lever pulled down. Then you're going to want to open up some of your faucets around the house and just let the water run until it stops and then you'll be ready to go. Before you start working in your bathtub, make sure that you either close your drain or put something over top of it so nothing falls down there.

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