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Install new faucet — Install the New Faucet

Beginner3 hours

Part of project

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

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In this video

Install the new faucet following the manufacturer's instructions. This may involve attaching gaskets, a mounting nut, and water lines. Most new faucets include hoses that are pre-attached to the faucet for ease of installation.

Goal: Secure new faucet to the sink

  • Read the instructions carefully before you begin.

Used in this video

  • Screwdriver — tightening screws
  • Wrench — tightening nuts
  • Teflon tape — sealing threads
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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.

Transcript
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will go in so that way it's nice and nice and flush in the box we removed the old the new faucet and it comes with gaskets it comes with a plate that covers any extra holes it comes with a soap dispenser now here are the four little pieces that came in that bag one is a gasket that goes on the top here you can see that's got a little lip that goes up we also have that little nut and we have a rubber gasket and a metal gasket that are going to go underneath the faucet so the first thing we want to do is fish the kind of plastic rubber gasket that goes on the top it's got a little bit of a lip that's sticking up that goes upwards and it'll fit nicely underneath the faucet base what's great about this faucet also it only comes with two connections so it makes it really easy to install so as you can see that little gasket just kind of fits in there I'm gonna go ahead and fish the two hoses through the hole and then I'm just gonna balance the faucet on top underneath we're gonna go ahead and install those little gaskets and use the little nut to tighten it up so the first thing that goes on there is that rubber gasket push it all the way up and then you kind of at the same time put the metal and that screw on and then go ahead and start to tighten that up so all I want to do is just straighten it out so that way it can be nice and level but we're going to fix it once we get this nice and now once that's done you go back up top and then you're gonna go ahead and make sure that your faucet is straight that its place where you want it to be tightened once it's properly seated go back underneath and you're gonna use a screwdriver to tighten up that nut it's a great design I think I I really think it's a lot easier to work with compared to the other one it took me a little bit of time to remove but because these are really long hoses that come with attach to the new faucet the old hoses we can go ahead and remove once you remove one make sure you remove both sides and clean off any old teflon tape we're gonna go ahead and put brand new teflon tape around that spigot to connect our hose this will help from help prevent leaks now there's a hot and cold line so make sure you put it in the right spot and as you can see we did it on one side we'd do the same thing on the other and then go ahead and turn on the hot and cold water and check for leaks no leaks

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