Remove Old Valve — Remove the Old Angle Stop
Part of project
How to Replace a Leaky Angle Stop (Shutoff Valve) Under Your Sink · Step 4 of 10
In this video
Using two adjustable wrenches, remove the old, leaking valve. Place one wrench on the stationary nut of the pipe fitting to hold it steady. Use the second wrench to grip the body of the old valve and turn it counter-clockwise to unscrew it. Have a towel ready for any residual water.
Goal: Plumbing Fixture Repair
- For easier access, pop off the plastic trim plate from the washing machine outlet box. It is usually held in by clips and can be gently pried off.
Used in this video
- Adjustable Wrench (Tool Type: Wrench) — To hold the stationary pipe fitting and to unscrew the old valve.
- Adjustable Wrench (Tool Type: Wrench) — To hold the stationary pipe fitting and to unscrew the old valve.
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FAQs
What should I do if the old compression nut and ferrule are seized onto the copper pipe?
Apply penetrating oil, like Blaster PB Penetrating Oil, directly to the nut and ferrule. Allow it to soak for 15-30 minutes before attempting to loosen it again with your adjustable wrench. If it's still stuck, you may need to carefully cut the old ferrule off with a small hacksaw or specialized tool, taking care not to damage the copper pipe itself.
How can I prevent leaks after installing the new angle stop?
Ensure the copper pipe is clean, smooth, and free of burrs or scratches where the new ferrule will sit. Hand-tighten the compression nut first, then use your adjustable wrench to tighten it an additional half to three-quarters of a turn. Avoid overtightening, as this can damage the ferrule or pipe, but ensure it's snug enough to prevent drips.
Do I really need to shut off the main water supply for this project?
Yes, absolutely. Shutting off the main water supply is crucial to prevent significant flooding when you remove the old valve. Always relieve any remaining water pressure by opening a nearby faucet after shutting off the main supply, before starting work under the sink.
How long should this project typically take for a beginner?
For a DIY beginner, expect this project to take approximately 1 to 2 hours. This accounts for time to gather tools, carefully follow each step, and troubleshoot minor issues like a stubborn old valve or initial small leaks. Taking your time will help ensure a successful installation.
Remove Old Valve — Remove the Old Angle Stop
Part of project
How to Replace a Leaky Angle Stop (Shutoff Valve) Under Your Sink · Step 4 of 10
In this video
Using two adjustable wrenches, remove the old, leaking valve. Place one wrench on the stationary nut of the pipe fitting to hold it steady. Use the second wrench to grip the body of the old valve and turn it counter-clockwise to unscrew it. Have a towel ready for any residual water.
Goal: Plumbing Fixture Repair
- For easier access, pop off the plastic trim plate from the washing machine outlet box. It is usually held in by clips and can be gently pried off.
Used in this video
- Adjustable Wrench (Tool Type: Wrench) — To hold the stationary pipe fitting and to unscrew the old valve.
- Adjustable Wrench (Tool Type: Wrench) — To hold the stationary pipe fitting and to unscrew the old valve.
Frequently Asked Questions
What should I do if the old compression nut and ferrule are seized onto the copper pipe?
Apply penetrating oil, like Blaster PB Penetrating Oil, directly to the nut and ferrule. Allow it to soak for 15-30 minutes before attempting to loosen it again with your adjustable wrench. If it's still stuck, you may need to carefully cut the old ferrule off with a small hacksaw or specialized tool, taking care not to damage the copper pipe itself.
How can I prevent leaks after installing the new angle stop?
Ensure the copper pipe is clean, smooth, and free of burrs or scratches where the new ferrule will sit. Hand-tighten the compression nut first, then use your adjustable wrench to tighten it an additional half to three-quarters of a turn. Avoid overtightening, as this can damage the ferrule or pipe, but ensure it's snug enough to prevent drips.
Do I really need to shut off the main water supply for this project?
Yes, absolutely. Shutting off the main water supply is crucial to prevent significant flooding when you remove the old valve. Always relieve any remaining water pressure by opening a nearby faucet after shutting off the main supply, before starting work under the sink.
How long should this project typically take for a beginner?
For a DIY beginner, expect this project to take approximately 1 to 2 hours. This accounts for time to gather tools, carefully follow each step, and troubleshoot minor issues like a stubborn old valve or initial small leaks. Taking your time will help ensure a successful installation.