Remove the Old Valve Under Pressure — Remove the Old Angle Stop
Part of project
How to Replace a Leaky Angle Stop (Shutoff Valve) Under Your Sink · Step 3 of 6
In this video
Use two large wrenches for this critical step. Place one wrench (a pipe wrench) on the galvanized pipe to hold it firmly in place and prevent it from twisting. Place the second wrench (an adjustable wrench) on the body of the old valve. Carefully and steadily apply force in a counter-clockwise direction to the valve wrench. Once it breaks loose, open the valve handle fully to relieve some pressure, then continue unscrewing by hand. Be prepared for a high-pressure stream of water once the valve is fully removed.
Goal: Unscrew the leaking valve from the pipe
- It is crucial to brace the galvanized pipe to prevent it from breaking. Failure to do so could lead to a major, uncontrolled leak.
- Water will spray out with significant force. Be prepared to get completely wet.
Used in this video
- Pipe Wrench (Wrench Type: Pipe wrench) — To hold the galvanized pipe steady and prevent it from breaking.
- Adjustable Wrench (Wrench Type: Adjustable crescent) — To grip and turn the body of the old valve for removal.
944K subscribers
FAQs
How long should I expect this project to take for a beginner, and what's the overall difficulty level?
This is a beginner-friendly plumbing project, typically taking 30-60 minutes once you have all the tools and materials ready. The most crucial steps involve ensuring the water supply is off and achieving a watertight seal.
What's the most crucial safety step I need to take before starting to avoid major water damage?
The most crucial step is to fully shut off the main water supply to your home before you begin any work. After turning it off, open a faucet on a lower level to confirm water flow has completely stopped and to drain the lines.
Do I really need a specific type of adjustable wrench, or will any adjustable wrench work for this project?
While the 12-inch adjustable wrench listed provides good leverage, any sturdy adjustable wrench that can securely grip the compression nuts will work. Ensure it's in good condition to prevent slipping and damage.
What is the most common mistake beginners make when installing a new compression angle stop, and how can I avoid it?
The most common mistake is overtightening or undertightening the compression nut, leading to leaks or damaging the valve/pipe. Tighten the nut until it feels snug, then give it an additional quarter to half turn, being careful not to strip threads.
Remove the Old Valve Under Pressure — Remove the Old Angle Stop
Part of project
How to Replace a Leaky Angle Stop (Shutoff Valve) Under Your Sink · Step 3 of 6
In this video
Use two large wrenches for this critical step. Place one wrench (a pipe wrench) on the galvanized pipe to hold it firmly in place and prevent it from twisting. Place the second wrench (an adjustable wrench) on the body of the old valve. Carefully and steadily apply force in a counter-clockwise direction to the valve wrench. Once it breaks loose, open the valve handle fully to relieve some pressure, then continue unscrewing by hand. Be prepared for a high-pressure stream of water once the valve is fully removed.
Goal: Unscrew the leaking valve from the pipe
- It is crucial to brace the galvanized pipe to prevent it from breaking. Failure to do so could lead to a major, uncontrolled leak.
- Water will spray out with significant force. Be prepared to get completely wet.
Used in this video
- Pipe Wrench (Wrench Type: Pipe wrench) — To hold the galvanized pipe steady and prevent it from breaking.
- Adjustable Wrench (Wrench Type: Adjustable crescent) — To grip and turn the body of the old valve for removal.
Frequently Asked Questions
How long should I expect this project to take for a beginner, and what's the overall difficulty level?
This is a beginner-friendly plumbing project, typically taking 30-60 minutes once you have all the tools and materials ready. The most crucial steps involve ensuring the water supply is off and achieving a watertight seal.
What's the most crucial safety step I need to take before starting to avoid major water damage?
The most crucial step is to fully shut off the main water supply to your home before you begin any work. After turning it off, open a faucet on a lower level to confirm water flow has completely stopped and to drain the lines.
Do I really need a specific type of adjustable wrench, or will any adjustable wrench work for this project?
While the 12-inch adjustable wrench listed provides good leverage, any sturdy adjustable wrench that can securely grip the compression nuts will work. Ensure it's in good condition to prevent slipping and damage.
What is the most common mistake beginners make when installing a new compression angle stop, and how can I avoid it?
The most common mistake is overtightening or undertightening the compression nut, leading to leaks or damaging the valve/pipe. Tighten the nut until it feels snug, then give it an additional quarter to half turn, being careful not to strip threads.