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Disconnect Water Supply Lines — Disconnect the Water Supply Lines

Beginner3 hours

Part of project

How to Install a New Bathtub Faucet: A Step-by-Step DIY Guide · Step 2 of 4

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In this video

Disconnect the water supply lines from the old faucet using adjustable pliers. Use a towel to catch any water that may spill.

Goal: Detach the old faucet from the water supply.

  • Use a basin wrench if the connections are tight.

Used in this video

  • Adjustable pliersDisconnecting water supply lines.
  • TowelCatching water spills.
114.7K views4895 minutes
This Old House

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FAQs

How realistic is the 3-hour estimate for a beginner, and what common issues might extend the installation time?

While 3 hours is a good estimate for an experienced DIYer, beginners should budget more time, perhaps 4-6 hours. Unexpected challenges like rusted connections, stripped screws, limited access, or needing to retrieve forgotten tools can significantly extend the process. Patience is key, as rushing can lead to mistakes.

What are the absolute essential safety precautions I must take before starting to install a new bathtub faucet?

Always turn off the main water supply to your home and fully drain the lines by opening a lower-level faucet before beginning to prevent flooding. Ensure the work area is dry and well-lit to avoid slips. Be mindful of any nearby electrical outlets, though direct electrical work is not part of this project.

What are the most common mistakes that lead to leaks after installing a new bathtub faucet, and how can I prevent them?

Leaks often occur from improperly tightened connections (either too loose or overtightened, stripping threads). Ensure all supply line connections are hand-tightened, then given a final quarter to half-turn with a wrench. Always use plumber's tape on threaded connections and plumber's putty where recommended by the faucet manufacturer for seals around the base.

Are there any additional tools or materials, beyond those listed, that would be helpful for a smoother bathtub faucet installation?

Yes, having a bucket or old towels for draining water and potential drips is essential. A flashlight for working in tight, dark spaces is highly recommended. Depending on your current setup, a basin wrench might be invaluable for reaching nuts in confined areas, and plumber's tape is usually needed for threaded connections.

Transcript
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adjustable pliers so let's get okay I'm underneath the sink I'm going to need to take that off ew there is the the sprayers over there I need to take that one off right there so take that and the other one off and I

Auto-generated transcript. May contain errors.