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Install New Valve — Install the New Valve

Beginner3 hours

Part of project

How to Replace a Bathroom Tub Faucet: A Step-by-Step DIY Guide · Step 4 of 6

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In this video

Install the new single-handle valve, ensuring it is securely connected to the water supply lines.

Goal: Securely install the new single-handle valve

  • Make sure all connections are tight to prevent leaks. Use plumber's tape or pipe dope on threaded connections.
  • Check local plumbing codes to ensure compliance.

Used in this video

  • Adjustable Wrench (brand: Craftsman, Tool Type: Plumbing Tools, Grip: Textured, Jaw Capacity: Up to 1.5 inches, Handle Length: Medium, Cost: Medium) · optional — Tightening and loosening nuts and bolts
  • Thread Sealant (brand: Oatey, Material: PTFE, PST, Thread Sealant Application: Clockwise, Counter-clockwise, Cost: Low) · optional — Sealing threaded connections
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FAQs

What's the most crucial first step to ensure safety and prevent major issues before starting this tub faucet replacement?

Always locate and turn off the main water supply to your bathroom or entire house before beginning. After turning off the water, open a nearby faucet to relieve any residual pressure in the lines, which prevents unexpected leaks and potential flooding.

Are there any specific tools or materials, beyond the listed adjustable wrench and screwdriver, that I should have on hand for a smoother installation?

Yes, it's highly recommended to have plumber's putty or silicone sealant for a watertight seal around the new valve, and thread seal tape (Teflon tape) for threaded pipe connections. A utility knife can be useful for cutting away old caulk, and a basin wrench might be needed for hard-to-reach nuts.

What is a common mistake beginners make when installing the new valve assembly, and how can I avoid leaks?

A common mistake is not applying enough plumber's putty or sealant, or not properly tightening the connecting nuts. Ensure an even, generous bead of putty is applied around the base of the new valve, and tighten all connections firmly by hand before a final quarter-turn with a wrench, being careful not to overtighten.

The project is rated 'beginner' and estimated at 3 hours, but what if my old faucet components are corroded or stuck?

Corrosion can significantly increase the difficulty and time. If parts are stuck, try applying penetrating oil to the nuts and let it sit for a while before attempting to loosen them. Be prepared for the project to potentially take longer than 3 hours if dealing with very old or stubborn fixtures.

Transcript
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If not, if you don't have access, you'll have to trim out the tile so that you can put in your single handle valve. Now in this case we've got a single handle valve installed here.

Auto-generated transcript. May contain errors.