Remove Old Angle Stop Valve — Tighten the Connections
Part of project
How to Replace a Leaky Angle Stop (Shutoff Valve) Under Your Sink · Step 6 of 7
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 absolute first thing I should do to ensure safety and prevent water damage before starting?
The most critical first step is to shut off the main water supply to your house. After that, open the nearest faucet (or the faucet above the angle stop you're replacing) to drain any residual water from the lines and relieve pressure, minimizing spills during the replacement.
Is this project genuinely suitable for a beginner, and is the 3-hour estimate realistic for someone new to plumbing?
Yes, this project is considered beginner-friendly as it doesn't require advanced plumbing skills like soldering. The 3-hour estimate is realistic, accounting for preparation, potential challenges like corroded parts, careful installation, and thorough leak checking, which is crucial for a successful outcome.
Do I really need all the specialized wrenches and pliers listed, or can I manage with basic tools?
While an adjustable wrench is essential, the Channellock pliers (like the 12 in. V-Jaw Tongue and Groove) are highly recommended. They provide superior grip, especially on older, potentially rounded or stuck nuts, preventing frustration and potential damage. A good flashlight is also invaluable for seeing into tight, dark spaces under a sink.
What's the most common mistake beginners make that leads to leaks after installing the new angle stop?
The most common mistake is improper installation of the compression fitting. Ensure the pipe stub-out is clean and smooth, and the compression nut is tightened correctly. Tighten it firmly by hand, then use a wrench for another 1/2 to 3/4 turn – overtightening can crush the ferrule, while undertightening will leak.
Remove Old Angle Stop Valve — Tighten the Connections
Part of project
How to Replace a Leaky Angle Stop (Shutoff Valve) Under Your Sink · Step 6 of 7
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.
Frequently Asked Questions
What's the absolute first thing I should do to ensure safety and prevent water damage before starting?
The most critical first step is to shut off the main water supply to your house. After that, open the nearest faucet (or the faucet above the angle stop you're replacing) to drain any residual water from the lines and relieve pressure, minimizing spills during the replacement.
Is this project genuinely suitable for a beginner, and is the 3-hour estimate realistic for someone new to plumbing?
Yes, this project is considered beginner-friendly as it doesn't require advanced plumbing skills like soldering. The 3-hour estimate is realistic, accounting for preparation, potential challenges like corroded parts, careful installation, and thorough leak checking, which is crucial for a successful outcome.
Do I really need all the specialized wrenches and pliers listed, or can I manage with basic tools?
While an adjustable wrench is essential, the Channellock pliers (like the 12 in. V-Jaw Tongue and Groove) are highly recommended. They provide superior grip, especially on older, potentially rounded or stuck nuts, preventing frustration and potential damage. A good flashlight is also invaluable for seeing into tight, dark spaces under a sink.
What's the most common mistake beginners make that leads to leaks after installing the new angle stop?
The most common mistake is improper installation of the compression fitting. Ensure the pipe stub-out is clean and smooth, and the compression nut is tightened correctly. Tighten it firmly by hand, then use a wrench for another 1/2 to 3/4 turn – overtightening can crush the ferrule, while undertightening will leak.