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Shut Off Water Supply — Shut Off the Water Supply

Beginner3 hours

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How to Replace a Bathroom Faucet: A Step-by-Step DIY Guide · Step 1 of 6

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Before beginning, you must stop the water flow to the faucet. Locate the hot and cold water shut-off valves, which are typically found under the sink against the back wall. Turn the handles on both valves clockwise until they are fully closed. Once the valves are shut, turn on the faucet handles to relieve any remaining pressure and drain the excess water out of the faucet and supply lines.

Goal: Prepare for vanity removal

  • Ensure both the hot and cold water lines are fully shut off before proceeding to the next step.
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FAQs

Why is a basin wrench listed as a required tool for this project?

A basin wrench is crucial because it's specifically designed to reach and loosen the mounting nuts that secure the faucet from underneath the sink. These nuts are often in very tight, awkward spaces where a regular adjustable wrench simply cannot fit or get enough leverage.

What should I do if the old faucet's mounting nuts are corroded and won't budge?

First, try applying a penetrating oil to the corroded nuts and let it sit for 15-30 minutes to help break down the rust. If they still won't turn, you may need to use a small hacksaw or a specialized nut splitter designed for plumbing to carefully cut through the nuts. Always wear eye protection when doing this.

Is 3 hours a realistic time estimate for someone who's never replaced a faucet before?

While 3 hours is a good estimate for an experienced DIYer, beginners should budget a bit more time, perhaps 4-6 hours. This allows for unexpected challenges like stubborn old parts, cleaning time, and carefully familiarizing yourself with the new faucet's instructions without rushing.

After installing the new faucet and turning the water back on, I have a small leak under the sink. What should I check first?

The most common culprits for leaks are loose supply line connections or improperly tightened mounting nuts. Gently but firmly tighten these connections with your adjustable wrench. If the leak persists, you may need to disassemble the connection, inspect the washers/gaskets, and reassemble with plumber's tape or a fresh application of plumber's putty if applicable.

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gun, and a putty knife. First things first, you want to make sure to turn off the water at the shut-off valves and that includes the hot and the cold. Then open the faucet and let me water that might be in the line straight out. Alright man, now it's time to get all the old stuff out. Disconnect the supply

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