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Step 10 · Final Test and Cleanup

If there are no leaks with the valve closed, it's time for the final test. Slowly turn the handle on the new angle stop a quarter turn to the open position (the handle should be parallel to the pipe). Water will now flow to the faucet. Turn the faucet on and let it run for a minute, purging any air from the line. While the water is running, perform one last, thorough check for leaks around the valve, its stem, and both connections. If everything is dry, you have successfully replaced your angle stop. Clean up your tools and dry the area under the sink.

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Step 10 · Final Test and Cleanup

If there are no leaks with the valve closed, it's time for the final test. Slowly turn the handle on the new angle stop a quarter turn to the open position (the handle should be parallel to the pipe). Water will now flow to the faucet. Turn the faucet on and let it run for a minute, purging any air from the line. While the water is running, perform one last, thorough check for leaks around the valve, its stem, and both connections. If everything is dry, you have successfully replaced your angle stop. Clean up your tools and dry the area under the sink.

Tools and Materials

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How to Replace a Leaky Angle Stop (Shutoff Valve) Under Your Sink

Step 10 of 10·5 min left

Shut Off Main Water and Drain Pipes
15 mins2 itemsIntermediate
Disconnect Faucet Supply Line
5 mins4 itemsIntermediate
Remove the Old Angle Stop
15 mins4 itemsAdvanced
Remove Old Nut and Ferrule
15 mins2 items
Clean and Prepare Pipe Stub-Out
5 mins3 itemsBeginner
Install the New Angle Stop
5 mins1 itemsIntermediate
Tighten the Compression Fitting
5 mins2 itemsAdvanced
Reconnect the Supply Line
5 mins2 itemsBeginner
Restore Water and Check for Leaks
10 mins1 itemsIntermediate
10
Final Test and Cleanup
5 mins2 itemsBeginner
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