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Install New Faucet Body — Install the New Faucet

Beginner3 hours

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How to Replace a Bathroom Faucet: A Step-by-Step DIY Guide · Step 5 of 6

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Prepare the new faucet for installation. This specific model comes with the hot and cold supply lines pre-attached, which simplifies the process. Carefully feed the supply lines through the mounting hole in the sink from the top. Once the lines are through, seat the base of the new faucet firmly onto the surface of the sink, ensuring it is aligned correctly.

Goal: Position the new faucet on the sink

  • If your faucet's supply lines are not pre-attached, it's much easier to attach them before mounting the faucet to the sink.
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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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At this point, it's a good idea to attach this supply lines to your faucet This particular faucet comes with the lines already attached. All we have to do is drop it in

Auto-generated transcript. May contain errors.