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Remove Old Angle Stop Valve — Remove the Old Valve

Beginner3 hours

Part of project

How to Replace a Bathroom Tub Faucet: A Step-by-Step DIY Guide · Step 3 of 6

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In this video

Place one wrench or pair of pliers on the body of the angle stop to hold it steady. Use a second wrench to loosen and unscrew the nut connecting the flexible water supply line to the valve. Once the supply line is disconnected, use the two wrenches to loosen the main compression nut that holds the valve body onto the copper pipe. Unscrew the nut and pull the old valve off the pipe.

Goal: Plumbing Fixture Removal

  • Always use two wrenches in opposition to each other. This prevents twisting or damaging the copper pipe coming out of the wall.

Used in this video

  • Channel-Lock Pliers (brand: Generic, Tool Type: Pliers, Pliers_Type: Channel_lock, Cost: Medium)Gripping the valve body and turning the compression nuts.
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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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break off can't tell you how many nightmare horror stories I have of these things so we're removing it we're gonna put in a multi-turn brass craft quarter inch angle stop quarter inch by a half inch compression angle stop to be exact now I'm not completely against quarter turn like if the customer is willing to spend a little bit more I always recommend the quarter turn doll DAHL valve they're great they don't freeze up you don't have to work them out every six months like you do the brass craft they're amazing valves the doll I mean I they're like I've never seen one fail so here I am listening the compression nut on this angle stop and yeah you're always gonna be screwing that compression nut kind of it's kind of backwards here you're screwing

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