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Prepare for Installation — Turn Off the Kitchen Water Supply

Beginner5 hours

Part of project

Kitchen Sink & Faucet Replacement: A Complete DIY Guide · Step 1 of 5

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Before starting any work, prepare the area under the sink. Begin by shutting off the hot and cold water supply valves, typically by turning them clockwise. Place a bucket or container underneath the plumbing to catch any water that will drain from the lines. Open the existing faucet to release any pressure and drain the remaining water. Finally, use an adjustable wrench to disconnect the hot and cold water supply lines from the shutoff valves.

Goal: Shut off water and disconnect supply lines

  • If you cannot find or operate the shutoff valves under the sink, you will need to shut off the main water valve for the entire house.
  • Keep a towel handy to clean up any spills immediately.

Used in this video

  • Adjustable Wrench (Tool Type: Adjustable Wrench)Disconnecting the water supply lines from the shutoff valves.
  • Bucket (Tool Type: Plumbing Tool)Catching residual water from the supply lines and P-trap.
  • Towel (Material: Fabric)Wiping up any water spills.
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This Old House

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FAQs

What specific tools are absolutely essential for a beginner to replace a kitchen sink and faucet, beyond standard household items?

A basin wrench, like the Husky 16PL0127, is crucial for reaching and tightening nuts in confined spaces under the sink. You'll also need an adjustable wrench, a 6-in-1 screwdriver (e.g., HDX 120SD12D), and a sturdy bucket (Unger DB02) for catching water. Don't forget plumber's putty and silicone sealant.

What are the most important safety precautions beginners should take when working with water and plumbing under the sink?

Always ensure the main water supply to the sink is completely shut off before disconnecting anything to prevent flooding. Wear safety glasses to protect against drips or debris, and have plenty of old towels and a large bucket readily available for unexpected spills. Be mindful of confined spaces and potential sharp edges.

Is 5 hours a realistic estimated time for a beginner to complete this kitchen sink and faucet replacement project?

While 5 hours is an estimated time, beginners should typically allocate a full day (6-8 hours) to account for potential unexpected issues, learning curves, and trips to the hardware store. Rushing can lead to mistakes and leaks, so take your time and follow each step carefully for best results.

What's a common mistake beginners make during this project, and how can I avoid it or troubleshoot it?

A frequent mistake is not properly sealing the sink's rim or adequately tightening water connections, leading to leaks. Ensure you apply a continuous, even bead of silicone sealant around the sink's edge, and hand-tighten all water supply and drain connections, then give them a final quarter-turn with a wrench. Always perform a thorough leak test after installation.

Transcript
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First shut off the hot and cold water supply valves under the sink or shut off the main water valve for the whole house Open the faucet to let any water drain out and leave the faucet open remove both hot and cold water supplies at the Shut-off valves or at the faucet using an adjustable wrench have a bucket or container nearby to catch any water from the lines Keep a towel on hand for this as well. Now it's time to remove the old faucet

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