How to Replace a Bathroom Sink

Because they get heavy everyday use, bathroom sinks can easily become chipped, stained, or scratched over time. When this happens, you may want to install a new sink to enhance the ambience of your bathroom and create a fresh, clean look. While replacing a bathroom sink takes a bit of time, and replacing the faucet is a separate but essential element of the process, the overall job is manageable for most DIYers.

EditSteps
EditPreparing the Old Sink and Buying the New One
Turn off the water supply and empty the lines. The shutoff valves are usually located in the cabinet under the sink. Turn both the hot and cold valves clockwise until they resist further turning. Then, turn on the hot and cold faucet taps to empty the faucet lines.[1]
If the shutoff valves won’t stop the flow of water completely, you’ll have to replace them. Unless you have some plumbing experience, this may be a job best left to a professional.

Disconnect the P-trap portion of the drain pipe. If the P-trap is made of PVC, loosen the slip nut that connects it to the underside of the sink drain by hand. If the P-trap is made of metal, loosen the connecting nut with channel locks.[2]
You don’t need to remove the P-trap to replace the sink, but you may want to remove it temporarily so you can clear it of debris. To take it out, unscrew the nut (by hand or with channel locks) that connects the bottom of the P-trap to the drain line below.

Place a bucket or heavy towel at the bottom of the cabinet to catch any dripping water.

Unfasten the hot and cold water lines with a crescent wrench. These are flexible lines that run from the shutoff valves to the underside of the faucet. Disconnect them right above the shutoff valves. Some types may have nuts you can loosen by hand, but you’ll often have to use a crescent wrench.[3]
You can reuse these water lines if you want—just disconnect them from the underside of the sink later, then reattach them during installation. But this is also a good time to replace them.

Measure the dimensions of the old bathroom sink with a measuring tape. If you want to reuse your existing countertop, makes sure you get a new sink that will fit in the same spot as the old one. Write down the length, depth, and width of the sink, as well as the length and width of the countertop.[4]
You’ll likely have to replace the countertop as well if you want a new sink that’s a different size.

Buy your new sink at a home improvement store. Bring the measurements of the old sink and countertop with you. This helps to ensure you purchase the correct size before putting in a bathroom sink. Make sure the replacement sink is the same type (top-mount or undermount) as the old one![5]
Ask an employee for assistance if you need help selecting a new sink.

Most bathroom sinks are still made of ceramic, but there are other options, and many colors to choose from beyond the traditional white.

EditReplacing a Top-Mount Sink
Remove the clips under the sink that hold it against the countertop. Many, but not all, sinks have clips underneath them that create a pressure connection against the underside of the counter. If your sink has them, loosen them either by hand or with a screwdriver.[6]
If your new sink requires clips, it should come with them. However, you may want to keep these old ones for the time being, just in case they might come in handy.

Cut any sealant between the sink and the countertop with a utility knife. Carefully run the blade of the knife between the rim of the sink and the countertop. Doing so will slice through the caulk or other sealant that secures the sink and countertop together.[7]
Work slowly and carefully so you don’t cut into the countertop, especially if it’s made of laminated wood. Of course, if you’re replacing the countertop as well, you can be as messy as you like!

Lift out the old sink from the counter. If you can get a good grip from above, you can lift it straight up and out. Otherwise, have a second person push up from below, then lift out the sink when it pops up.[8]
Once the old sink is out of the way, scrape away any residual caulk or sealant on the countertop. Use a plastic putty knife for scraping, then clean up any residue with a rag dipped in mineral spirits.

Install the faucet and drain on the new sink. You can either remove the faucet and drain from the old sink and reuse them, or buy a new faucet and drain to go with your new sink. If you are not experienced with this type of project, you may be better off with a new faucet and drain, since they will come with detailed installation instructions.[9]
Faucet and drain installations will vary quite a bit based on the particular brand and model you select. However, with a good set of instructions, it is a project most DIYers can handle. Otherwise, contact a plumber.

Apply silicone caulk to the underside of the new sink’s rim. Squeeze a steady strip of caulk all the way around the underside of the rim. This will hold the sink in place and prevent water from dripping down into the cabinet.[10]
Choose a silicone caulk intended for use with bathroom fixtures. Don’t use acrylic or other non-silicone caulks.

Lower the sink into the hole in the countertop. Lift the sink carefully and slowly drop it straight down into the opening. Once it’s in place, push down on the sink and wipe off any excess silicone that squeezes out with paper towels.[11]
This job may be a bit easier if you have a second person reach up from inside the cabinet to support the sink from below.

Attach the sink to the underside of the counter with fastener clips. Follow the instructions that come with your new sink regarding the placement of the clips. Either tighten them by hand or with a screwdriver, as indicated by the instructions. Once secured, they’ll apply pressure to hold the sink tight to the underside of the counter.[12]
Not all sinks require clips for installation. If your model does use clips, they should come in the package with your new sink. If you’re missing a clip or 2, it’s possible that the clips from your old sink may work.

Run a bead of caulk around the rim of the sink where it meets the countertop. Your goal here is to create a waterproof barrier between the rim of the sink and the countertop so that water can’t seep in under the sink rim. Once you’ve run the bead of caulk around the sink rim, wet your index finger and run it around the entire bead to smooth the caulk in place. Then use damp paper towels to wipe away any excess.[13]
Use the same silicone caulk you used to adhere the underside of the sink to the countertop.

EditReplacing an Undermount Sink
Cut through the caulk that connects the sink to the underside of the counter. Reach into the sink from above and run the blade of a utility knife through the bead of caulk, all the way around the rim of the sink. Work carefully so you don’t scratch the lip of the opening in the countertop.[14]
This caulk helps to hold the undermount sink in place but is primarily there to prevent water from getting between the sink rim and the underside of the counter.

Remove the holding clips under the sink while supporting it from below. Although it will be a tight fit in the sink cabinet, this is safer and easier with a second set of hands helping you. While the second person holds the bottom of the sink, remove the several clips (often 4-6) that pin the sink rim against the underside of the counter. They will either be screwed or epoxied into place.[15]
If they’re attached with screws, simply use a screwdriver to remove them.

If they are stuck in place with epoxy, use a putty knife to scrape, pry, and wedge the clips apart from the underside of the counter.

Once you remove the clips, the sink will be free to fall, so make sure it’s being held up by someone!

Lower the sink down and out of the cabinet. Now that the caulk and the clips have been removed, simply guide the sink downward and out of the cabinet. If you are reusing the existing faucet and drain, remove them now. But it’s more likely that you’ll want to install new ones with your new sink.[16]

Install the faucet, but not the drain, in the new sink. Unlike with a top-mount sink, don’t install the drain before installing an undermount sink. But it’s easier to install the new faucet now instead of having to work from inside the sink cabinet.[17]
Installing a faucet is within the skill set of most DIYers, but the process differs based on the type and model of faucet. Closely follow the instructions that come with the new faucet.

Apply a bead of silicone caulk around the entire top rim of the sink. Use a silicone caulk designed for bathroom applications. Make sure the bead is continuous around the entire rim of the sink.[18]
Like the stuff you removed from the old sink, this caulk is mostly there for waterproofing, but also helps hold the sink in place.

Secure the sink in position with a piece of lumber and a bar clamp. Cut a section of lumber so it’s at least a few inches/centimeters longer than the width of the opening for the sink in the countertop. Lay this piece of wood across the opening. Then, while a second person lifts the new sink up into place from beneath, feed the bar clamp up through the drain opening of the sink so that one of its clamps holds up the sink from below. Secure the other clamp to the piece of wood and tighten it.[19]
Make sure the clamp is tight enough to make the some of the silicone caulk squeeze out between the rim of the sink and the underside of the counter. Wipe away this excess caulk with a damp rag.

Secure the included clips in place with screws or epoxy. Your new undermount sink will come with support clips to place around the underside of the sink where it meets the underside of the counter. In some cases, these clips may attach with screws. If so, drill pilot holes and use a screwdriver to secure the clips in place. Otherwise, use the brand or type of epoxy recommended by the sink manufacturer.[20]
In most cases, the clips are adhered in place with a 2-part epoxy that hardens in about 10 minutes after being combined. Follow the product instructions carefully and apply the proper amount to each clip. Then press them into place as per the installation instructions for your sink.

Wait 24 hours, then install the drain. Even though the epoxy should be fully set in 10 minutes, it’s important to give the silicone adhesive time to cure fully. Leave the piece of lumber and bar clamp in place for a day before removing them. After that, you can put the drain in place and continue with the installation.[21]
Like faucets, drain installations vary by type and brand, but the process is DIY-friendly if you follow the instructions carefully.

You could rely on the epoxy to hold everything in place after 10 minutes and not wait the full 24 hours before proceeding, but this is not recommended. Be patient!

EditMaking Final Connections and Testing
Allow the caulk on a top-mount sink to cure for 24 hours. Instead of making the final connections right away, it’s better to give the silicone caulk time to set up. This will prevent the sink from shifting and breaking the solid bead of caulk that you made.[22]
If you’re installing an undermount sink, you should already have waited 24 hours before putting in the sink drain. In this case, you can proceed with the last steps of the installation.

Reconnect the water lines and the P-trap underneath the sink. You just need to do the reverse of the disconnecting process. Hand-tighten the water lines where they connect to the hot and cold shutoff valves or use a crescent wrench if needed. Similarly, use your hands to tighten the nut on a PVC P-trap or channel locks for a metal P-trap.[23]
If your new sink drain is a little shorter than your old one, you can buy a P-trap pipe extension at your local hardware store. The extension can be cut to fit and will also connect in place with a nut that you’ll either hand-tighten or secure with channel locks.

If your new sink drain is a little too long, you can cut off some of the pipe either at the top of the P-trap or the bottom of the drain. Use a hacksaw or pipe cutter to make the adjustment.

Turn the water back on and check for leaks. Open the hot and cold water valves by turning them counterclockwise. Then, open the hot and cold faucet taps fully and let the water run for at least 2-3 minutes. Watch under the cabinet for any leaks in the water lines, drain lines, or elsewhere. Tighten any loose connections as needed.[24]
Keep the bucket or towel at the bottom of the sink cabinet while you test for leaks.

If you have a leak at a pipe connection, try shutting off the water, undoing the connection, wrapping some plumber’s tape around the pipe threads, and then re-making the connection.

If you can’t figure out where a leak is coming from and/or how to fix it, shut off the water supply lines and call a plumber.

EditThings You’ll Need
Measuring tape

Pencil and paper

New sink

Channel lock pliers

Crescent wrench

Screwdriver

Utility knife

Silicone caulk

Paper towels

Fastener clips

Plumber’s tape

New faucet

Piece of lumber (for undermount sink)

Bar clamp (for undermount sink)

2-part epoxy (for undermount sink)

EditRelated wikiHows
Replace a Bathroom Faucet

Install a Bathroom Sink

Repair a Delta Brand Kitchen Faucet

Install a Shower Faucet

EditSources and Citations
EditQuick Summary
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Today in History for 12th December 2018

Historical Events

1915 – Russian troops overrun Hamadan, Persia
1939 – Russ Indigirka capsizes in blizzard off Japanese coast; 750 die
1946 – Ice plant collapses, shearing a tenement building and burying 38
1958 – Fergie Gupte takes 9-102 with leggies v W Indies at Kanpur
1967 – US launches Pioneer 8 into solar orbit
1995 – Israeli Prime Minister Shimon Peres addresses both houses of the US Congress

More Historical Events »

Famous Birthdays

1731 – Erasmus Darwin, influential English physician, poet, philosopher, and botanist (grandfather of Charles Darwin), born in Newark-on-Trent, England (d. 1807)
1745 – John Jay, US statesman and 1st US Chief Justice, born in NYC, New York (d. 1829)
1907 – Frederik van Heek, Dutch sociologist, born in Enschede, Netherlands (d. 1987)
1924 – Nevit Kodali, composer
1946 – Emerson Fittipaldi, Brazilian auto racer (World F1 Champion 1972, 74, Indy 500 1989, 93), born in São Paulo, Brazil
1964 – Haywood Jeffires, NFL wide receiver (Houston Oilers)

More Famous Birthdays »

Famous Deaths

1934 – Thorleif Haug, Norwegian Nordic skier (b. 1894)
1938 – James McNeill, Irish politician, 2nd Governor-General of the Irish Free State, dies at 69
1970 – Louis Zimmer, Flemish astronomer and clock maker (Jubelklok, Wonder Clock), dies at 82
1996 – Michael Geoffrey Corcos, medical researcher, dies at 77
2003 – Heydər Əliyev, President of Azerbaijan (b. 1923)
2007 – Ike Turner, American singer, former husband of Tina Turner (b. 1931)

More Famous Deaths »

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How to Ask Your Professor for a Letter of Recommendation Via Email

Asking your professor for a letter of recommendation can be a stressful experience, but it’s a normal part of applying for a graduate program, internship, or job. If you ask your professor far enough in advance, they’ll likely be happy to help you. It’s best to ask your professor in person with a written request. However, you might send an email if your professor is comfortable with digital communication.

EditSteps
EditSample Emails
WH.shared.addScrollLoadItem(‘5c1079b0f2f19’)Sample Email Asking for a Letter of RecommendationWH.shared.addScrollLoadItem(‘5c1079b0f33d9’)Sample Request for Letter of Rec for JobWH.shared.addScrollLoadItem(‘5c1079b0f384c’)Sample Request for Letter of Rec for Grad School
EditMaking a Timely Request
Begin the process at least 2 months in advance, if possible. It’s best to give your professor ample time to prepare your letter since they’re likely very busy. You also need time to review your application materials and write a request for a letter of recommendation. If your first professor says no, you’ll need time to ask another professor.[1]
Only ask one professor at a time, unless you need multiple recommendation letters. Don’t waste a professor’s valuable time if you don’t actually need their letter.

Choose a professor who will give you a good recommendation. Your letter will be stronger if the professor has a personal relationship with you. Pick a professor who knows you well and seems to have a good opinion of you. Answer the following questions when choosing whom to ask:[2]
Does this professor know me by name?

Are they familiar with my work?

Have I taken more than one class with this professor?

Did I perform well in their class(es)?

Have they worked with me outside of class?

Has this professor seen my growth as a student?

Did I act professionally and ethically while in this professor’s class?

Check the due date. You’ll need to provide the due date in your request. Make sure you’re looking at the due date for your letter of recommendation, not for the application as a whole.[3]
In some cases, all of the the due dates will be the same.

If you’re submitting the letter along with your application, you might want the letter early so you can ensure you have all of your application materials to the program or job by the due date. Communicate this to your professor and give them a specific date when you need the letter.

Give your professor at least 5-6 weeks to write the letter, if possible. Your professor likely has a lot on their plate with teaching, grading, and handling requests from other students. You’re more likely to get a positive response if you ask them well in advance of the due date.
The best time to ask your professor is near the beginning of the semester.[4]
Since you want a professor who knows you well, you might choose a professor who taught you in a prior semester.

Review the application details to find out how to send in the letter. The application will tell you if the letter must be mailed in or submitted online. Some letters may be emailed to the school, while others must be uploaded with your application. It’s important to know ahead of time how your letter will be submitted so you can tell the professor.[5]
In most cases, your professor will want to send the letter directly to the program without you reading it. If you’re the one who will be submitting the letter, make that clear in your request. They may be able to give you a reference letter in a sealed envelope with their signature over the seal. This will prove that you haven’t opened the letter.

EditWriting the Email
Write a salutation with their preferred title and name. Open your email the same way you’d start a letter. Use a professional opening, like “Dear.” Then, write the professor’s name.[6]
You might write, “Dear Dr. Hamilton.”

You can find their preferred title on your syllabus or their website.

Introduce yourself and remind them who you are. Write one or two sentences to refresh their memory. Give your name and which class(es) you’ve taken with them. Mention any one-on-one experience you have with them, as well.[7]
Keep your refresher brief. You’ll provide a longer explanation of your background and accomplishments in an email attachment.

You might write, “My name is Katie Williams and I took your fiction writing workshop my junior and senior year.”

Explain your purpose in sending the email. Tell them you need a letter of recommendation. Then, provide details about the educational program, internship, or job you’re applying for.[8]
You could write, “I’m applying for graduate programs and hoped you’d write a letter of recommendation for me.”

Tell them why you chose them to write the letter in the next paragraph. Share how they impacted your life, what you learned from them, or why you think their letter will hold more weight. This is a good place to add a little flattery in your request.[9]
You might write, “Your classes helped me grow as a writer. Thanks to your help, my story has been accepted for publication. I’m grateful for having such a skillful, imaginative instructor there to offer me guidance.”

State what you hope they’ll say in a new paragraph. Tell them that you’ve attached information about your accomplishments, as well as your resume or CV. Let them know what type of information you’ve included, such as a list of classes you’ve taken, work you’ve performed, awards you’ve won, service you’ve completed, and activities you participated in.[10]
You might write, “I’ve attached a copy of my resume and a bulleted list of my recent accomplishments. I’ll also be happy to meet with you to discuss my work, if you’d like to speak in person.”

Include a link or instructions about how to submit the recommendation. Provide the due date of the letter and where to send it. This might be a physical address or a digital address. If they’re submitting it digitally, provide either the email address or a link where they can upload the letter.[11]
For instance, “The letter of recommendation is due January 15, 2019. You can send it to myprogram@emailaddress.com.”

Thank them for their consideration in your last paragraph. Let them know you value the time they spent reading your request, as well as the time they will spend writing the letter. Additionally, thank them for the guidance they’ve provided as your professor.[12]
For example, “Thank you for reading this request and for everything you’ve taught me. I really appreciate the time and energy you spent guiding me. I hope you’ll consider writing my letter of recommendation.”

Sign the email with a complimentary close and your name. Use a professional close, such as “Sincerely,” “Your former student,” or “Best regards.” Skip a line. Then, write your name.[13]
You might write, “Sincerely, Katie Williams.”

EditSending Your Email
Use a professional subject line that clearly states your request. Let the professor know up front that you are requesting a letter of recommendation. This tells them your email is timely and lets them know what to expect from your email.
Your subject line might read, “Request for a letter of recommendation for graduate school.”

Include your written request in the body of the email. This makes it easy for your professor to read your request. Don’t put the request in an attachment, which makes it harder for your professor to open and read it.[14]

Attach a list of accomplishments and your resume or CV. No matter how well your professor knows you, it’s unlikely they’ll remember everything about you. Your professor will be able to write a better letter if they have a list of your achievements, work history, and educational background in front of them. Attaching them to your request allows your professor to review them along with your request.[15]
Making a bulleted list makes it easier for your professor to skim it.

You might also attach samples of your work and a draft of your application essay. This will help your professor tailor your letter to your application.[16]

Attach a list of due dates and where to send the letter. Sending in your letter will be easier if your professor knows exactly when the letter is due and where to send it. Provide the address for a written letter or the digital link for an electronic letter.[17]
If the program has a specific form to use for the recommendation, attach this form, as well. It’s important to make the process as easy as possible for your professor.[18]

EditTips
Provide the professor with a copy of your resume or CV in an email attachment. Mention in your request that you’ve attached it for their reference.

If you want to send your professor a reminder that the recommendation letter is due, send them a thank you note a week or two in advance that includes the due date.

If you need a recommendation on short notice, it’s best to ask in person. If you must ask in an email, make it clear that you understand if they can’t write you a letter.

If you can, ask your professors to recommend you in person. This is generally considered more personal and courteous.

EditWarnings
Some professors may prefer being asked for a letter of recommendation in person. Consider your professor’s preferences for communication.

Remember that professors aren’t obligated to write recommendation letters. They may only want to write letters for students they know well.

Don’t ask to read the letter before it’s sent. This is considered inappropriate.

EditRelated wikiHows
Write an Email Asking for an Internship

Write a Letter of Interest for Grad School

Write a Letter Asking for Scholarship Money

Write a Letter of Recommendation

Befriend a Professor

Ask a Professor for a Paper Extension

Get a Professor to Change Your Grade

Ask for a Reference from an Employer

Take Lecture Notes

EditSources and Citations
EditQuick Summary
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