Repairing Guides

how to repair leaky bathroom sink faucet

by Alena Spinka Published 3 years ago Updated 2 years ago
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How To Repair A Leaky Bathroom Faucet.

  • Step 1: Find The Leak. To determine which faucet valve is leaking, turn off the cold-water-supply valve under the sink. If the leak stops, the problem ...
  • Step 2: Remove The Faucet Handle Cap.
  • Step 3: Remove The Handle.
  • Step 4: Remove The Retaining Nut.
  • Step 5: Pull Out The Cartridge.

Full Answer

Why there is a leak underneath your bathroom sink?

Replace the Faucet’s Inner Cartridge

  1. Turn Off the Water Supply. This is typically done underneath the sink. ...
  2. Remove the Faucet Handle. Most handles have screws that you can find pretty easily either on their sides or rears. ...
  3. Find the Retaining Nut and Remove it. ...
  4. Remove the Old Cartridge. ...
  5. Install the New Cartridge. ...
  6. Put it All Back Together and Test the Faucet. ...

How to fix a leaky valve under the sink?

Sink Valve Leakage Causes and How to Fix Them

  • Turning Off the Water. The first step to fixing a leaky valve is to turn off the main water supply to that pipe. ...
  • Fixing the Valve. Brand new shut-off valves tend to leak all the time around the handle area whenever they are turned on.
  • Replacing the Packing Valve. ...

How to fix a leaky clawfoot bathtub faucet?

How to Replace a Faucet on a Claw Foot Tub

  1. Turn off the main water valve for the house and open the old faucet to equalize the pressure in the pipes.
  2. Unscrew the nuts connecting the faucet to the supply pipes with a wrench. ...
  3. Unscrew the nuts holding the faucet to the tub with adjustable pliers. ...
  4. Clean any debris, mold or corrosion from the tub with scouring powder and a sponge. ...

More items...

How to fix a leaking bathtub faucet the Family Handyman?

Tools Required

  • Adjustable wrench
  • Bath socket wrench
  • Handle puller
  • Seat wrench
  • Utility knife

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How do you fix a dripping bathroom sink faucet?

0:563:40Fix a Leaky Faucet Double Handle DIY - YouTubeYouTubeStart of suggested clipEnd of suggested clipOnce you loosen it up unscrew it with your hand. Set the nut in a safe place get the channel locksMoreOnce you loosen it up unscrew it with your hand. Set the nut in a safe place get the channel locks on the top of the brass. Piece here and should come right out.

Why is my bathroom faucet dripping?

The most common sources of a leaking faucet – a worn out washer or gasket, a loose O ring, corrosion in the valve seat – can be detected and fixed easily with most faucet repair kits.

Why does my faucet drip after I turn it off?

If you notice your bathroom sink drips or leaks out of the faucet head when turned off, there is likely an issue with the seal inside the faucet head, allowing the water to run through or drip. Before calling a professional plumber, consider whether you're able to repair the leak in your bathroom sink yourself.

What is the most common cause of dripping faucets?

A worn-out washer is perhaps the most common cause of a dripping, leaky faucet. Every time a faucet is used, the washer rubs against the valve seat, causing friction and wearing the component down. Dripping that is caused by deteriorating rubber washers can be fixed by replacing the washer.

Where is the O-ring on a faucet?

0:251:34Leaky Faucet Base – O-Ring Replacement - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe o-rings should be easy to see and locate there are at least one or two o-rings that there couldMoreThe o-rings should be easy to see and locate there are at least one or two o-rings that there could be even three or four remove. Each oring using a flathead screwdriver or needle nose pliers.

How do you fix a leaky faucet stem?

0:001:48How to Repair a Leaky Faucet Stem - YouTubeYouTubeStart of suggested clipEnd of suggested clipMake sure you turn the water off take your handle. Off. Then you can remove the stem you'll need aMoreMake sure you turn the water off take your handle. Off. Then you can remove the stem you'll need a crescent wrench or a pair of pliers. Once. You have the stem removed.

Can you change a bathroom faucet without turning off water?

If you are really just replacing the handle - which is really items 1-4 (and sometimes 5-6 or sometimes 5-6 don't exist) - then no you do not need to turn off the water.

How do you change a washer in a bathroom faucet?

0:101:54How to Replace a Washer in a Leaky Faucet For Dummies - YouTubeYouTubeStart of suggested clipEnd of suggested clipPut the handle back on the stem. And give it a twist. Now remove the washer. And replace it with aMorePut the handle back on the stem. And give it a twist. Now remove the washer. And replace it with a new one. Some faucets have a spring under the washer like this one valve washers come in many shapes.

What causes water faucets to leak?

The typical causes for a leaky faucet include corrosion, mineral deposit on the internal parts, or defective gaskets, o-rings, or washers. Luckily, most faucets that leak can be fixed by homeowners if they have the right tools and some basic knowledge of plumbing.

Does hard water cause leaky faucets?

Hard Water Mineral Deposits – The calcium and mineral deposits in hard water can lead to leaky faucets. The deposits prevent the valve seat, washers, and O-rings from closing correctly.

Can high water pressure cause leaky faucet?

Strong Water Pressure Although many of us enjoy high water pressure, it is one of the most common causes of a leaky tap. Pressure that is too strong can mess with the water flow in your pipes. Water will not be able to flow smoothly from its destination, creating a backup.

Why is the base of my faucet leaking?

Leaks around the base of the spout are caused by worn O-rings located under the spout. All that's usually required to access these O-rings for replacement is to wiggle and pull up on the spout to remove it. Depending on the dripping faucet, you'll also have to remove the handle and other parts to access the spout.

How do I fix a leaky faucet?

To fix a leaky faucet, first turn off the water to your faucet by twisting the valve under the sink. If there’s no valve, turn off the water supply for your whole house. Turn the faucet on to empty any water in the pipes, and plug the drain so nothing falls down it while you’re working.

How to replace O-ring on a sink?

Pull the handle cartridge up and out of the sink. Use a cloth to wipe down all of the loose parts and the area around the handle. If the O-ring looks old or damaged, replace it. Get a matching replacement for the old cartridge, then insert the new cartridge back into the sink.

How do I know what type of faucet I have?

Determine what type of faucet you have. 1 A ball faucet contains a ball bearing. 2 A cartridge faucet contains a cartridge. The materials of the cartridge will vary, but handle often has a decorative cap. 3 A ceramic-disk faucet contains a ceramic cylinder.

What is the difference between a ball and a cartridge faucet?

You may have to take your faucet apart before you know which is which, because the internal mechanisms at the base of their arms are all different: A ball faucet contains a ball bearing. A cartridge faucet contains a cartridge. The materials of the cartridge will vary, but handle often has a decorative cap.

How many handles does a compression faucet have?

A compression faucet has two screw handles, one for hot and one for cold, and is the easiest to recognize by sight. The other three types of faucet all have one central, swiveling arm that you can swing from hot to cold as desired.

What is the stem on a faucet?

Underneath, you will find the stem, which sits on top of the O-ring, which sits on top of a seat washer. The seat washer is usually made of rubber, which can get worn out after a while. If your faucet is dripping, this is mostly likely the culprit.

Can a leaky faucet cause high water bills?

The annoying drip of a leaky faucet can cause higher water bills and irritation. Fortunately, it's easy to fix yourself if you can identify the type of faucet and get the necessary tools for the job.

Is a Bathroom Sink Leaking Dangerous?

Yes! A leak in the bathroom sink might be more serious than a leak elsewhere. For example, if there is a locked vanity concealing the drain, leaks might go unnoticed for a long time. This can lead to water damage and potential mold growth.

Understanding Your Bathroom Sink Drain Assembly

Every sink is unique, and what you'll find in the bathroom is distinct from what you may find in the kitchen. However, many of the sink's components are common across all versions.

Diagnose The Source of the Leak

The first step in repairing your bathroom sink leak is locating the leak. The main causes of bathroom sink leaks are lose pipe connections, a bad drainpipe, or a leaky drain flange. Once you've figured out where the leak is coming from, you'll be able to take the appropriate action. The faulty component may be repaired or replaced.

Leak Coming From The Shut-Off Valves

The hot- and cold-water supply shut-off valves must be replaced. You'll need to turn off the main water supply. Shut-off valves are either screwed on with a compression fitting or soldered on, which necessitates the services of a plumber.

Leak Coming From The Water Hose

Remember to inspect for leaky pipes or your supply lines. To tighten the connection, use a pair of pliers. If that doesn't work, remove the hose and inspect the gasket to see whether it's worn and needs to be replaced.

Leak Coming From The Sink Drain

Leaks from the drain-assembly are the most difficult to repair and almost certainly need the assistance of a specialist. If you're ambitious and want to give repairing a bad drain pipe a try, the P-trap is first removed before the drain is. Wrap the drain threads with plumber's tape and replace the drain and P-trap.

Leaky Sink Drain Flange

You may want to call a plumber for a leaky sink flange too. Remove the sink drain and check it for any leaks. Clean it if necessary, and if the flange is damaged, replace it. You'll need to reconnect everything as it was before when you're done.

How to Fix a Dripping or Leaky Double-Handle Faucet

Learn how to repair three types of double-handle faucets: ceramic disc, compression/reverse-compression and cartridge.

Repairing Different Types of Faucets

Keep in mind that some cartridge bodies and ceramic disc bodies/cylinders can look similar. In most cases, the cartridge body doesn't have moving parts. The ceramic disc body/cylinder does have moving parts that pivot to open the ports on the bottom.

Locate the Leak

Determine which side of your faucet is leaking by shutting off the water supply valves one at a time. If the leak doesn’t stop after the first valve is turned off, it’s the other line that’s leaking.

Ceramic Disc Faucets

This type of faucet uses a cylinder with tiny discs on the bottom that control water flow. The most successful repair typically replaces the entire cylinder.

Compression & Reverse-Compression Faucets

In this repair, you’ll replace the washer and O-ring or gasket on the valve stem, as well as the valve seat in the faucet.

Aerator

After reassembling your faucet, run the water for a few minutes to clear debris from the new parts. Replace the aerator.

How to Fix a Dripping or Leaky Single-Handle Faucet

Learn to repair three types of single-handle faucets: ball, cartridge and ceramic disc.

What to do if your faucet is leaking?

The first thing to do when you realize that you have a leaky faucet is investigate the source of the leak. If the water is dripping from the spout, that's a pretty clear sign that the internal valve isn't shutting off the water completely, and the faucet cartridge needs to be replaced.

How to remove a retaining nut from a faucet?

Some faucets have a decorative collar or cap over the retaining nut. If your faucet has a collar, turn it counterclockwise by hand to remove it. You can use an adjustable wrench or tongue-and-groove pliers to remove the collar if it is tight.

Why is my faucet running down the base?

This can be caused by a loose or faulty aerator or even by a small pinhole in the spout. If all looks good and the problem is not a leaky faucet spout, then the problem could be a loose retaining nut under the dome cap. Remove the faucet handle and the dome cap and check to make sure the nut is tight.

Why is my faucet dripping?

Remove the faucet handle and the dome cap and check to make sure the nut is tight. This type of leak could also be caused by a faulty cartridge, which is also the cause of a dripping faucet.

Why is there water under my faucet?

The solution is the same for either problem: replace the cartridge. If there is water coming from under the single-handle faucet beneath the sink or counter, it could be caused by a variety of problems, including a leaky or faulty supply line or supply line nut . It can also be that the rubber or plastic gasket under the faucet is cracked or faulty, ...

How to replace a cartridge retaining nut?

You may need to use needle-nose pliers to install the clip. Replace the retaining nut by turning it clockwise and gently tighten it with an adjustable wrench. Set the collar back on and turn clockwise, tightening gently with an adjustable wrench or pliers.

Do ceramic disc valves leak?

According to Fine Homebuilding, ceramic disc valves are less likely to leak and will generally last longer than other types of faucet valves. While different faucet brands have different internal valves, most single-handle bathroom faucets can be taken apart and repaired using the same basic steps.

Shut Off the Water

The type of faucet in your kitchen or bathroom may be a single or double handle, has a modern pull-down wand design or is a twisting ball faucet on your shower or tub. Before you begin to fix a dripping faucet, your first step is to shut off the water supply.

Remove the Cartridge or Stem

The faucet cartridge or faucet stem is found in most two-handled kitchen and bathroom faucet styles. This is the part that regulates the flow of hot and cold water.

Install New Cartridge

Now that you’ve inspected the cartridge or stem and identified it as the source of your dripping kitchen faucet or bathroom faucet leak, you’ll have to replace it.

Reattach Faucet Handle

Once you’ve installed the new cartridge or stem, return to the previous steps and reattach the faucet handle. Turn your water line back on and remove any debris or towels from your sink.

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