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Shut Off Water and Disconnect Faucet Line — Disconnect Water Supply Lines

Beginner4 hours

Part of project

How to Replace a Kitchen Sink Faucet · Step 3 of 10

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In this video

Before disconnecting any lines, locate the cold water shutoff valve under the sink and turn it to the off position. Place a bucket underneath the connection to catch any draining water. Using an adjustable wrench, carefully loosen and unscrew the flexible water line that connects the shutoff valve to the kitchen faucet.

Goal: Isolate the water supply and disconnect the existing cold water line.

  • Make sure the water is completely shut off to avoid water damage.
  • Having a bucket ready is essential to keep the cabinet dry.

Used in this video

  • Adjustable Wrench (brand: Unspecified, Adjustable Wrench Size: Medium (8-inch))Loosening the nut on the water supply line.
  • Bucket (brand: Unspecified)Catching residual water from the disconnected line.
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FAQs

What specialized tools are essential for replacing a kitchen faucet, especially for a beginner?

A basin wrench (like the TEKTON or Husky models listed) is crucial for reaching and loosening nuts in tight spaces under the sink. An adjustable wrench is also a must-have for supply lines. A sturdy bucket will catch drips and keep your workspace clean.

What's the most critical safety step before I start, and what should I do if old connections are corroded and won't loosen?

Always turn off the water supply to the sink, either at the shut-off valves under the sink or the main house valve. If connections are stuck, apply penetrating oil, let it sit, and use a basin wrench with steady pressure. Avoid excessive force to prevent stripping or damaging pipes.

The project estimates 4 hours, but I'm a complete beginner. Is this realistic, and what could make it take longer?

For a complete beginner, it's wise to budget 6-8 hours. Old, corroded parts, extremely tight working spaces, or unexpected plumbing issues can significantly extend the installation time. Don't rush; taking your time prevents costly mistakes.

After installing the new faucet, I'm noticing drips or leaks. What are the most common culprits I should check?

First, ensure all water supply lines are securely tightened to the faucet and the shut-off valves, but don't overtighten plastic nuts. Next, check if the mounting nuts under the sink are snug and that the faucet's base gasket is properly seated and compressed against the sink surface, preventing leaks from above.

Transcript
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now and uh now I'm going to take a crescent wrench and undo my uh line right here my hose and then I'm going to uh have a bucket underneath this thing just to catch any water water comes out it's going to be a little bit make sure it's off uh and then Mount this thing and then uh should be good to go got my

Auto-generated transcript. May contain errors.