Repair Leaking Bathroom Sink Faucet

Repairing a Leaking Bathroom Sink Faucet

A leaky bathroom sink faucet can be more than just an annoyance; it can lead to wasted water, increased water bills, and potential damage to cabinets and floors. Fortunately, repairing a leaky faucet is often a simple task that homeowners can tackle themselves with the right tools and knowledge. This article will guide you through the process of identifying the source of the leak and provide step-by-step instructions for common faucet repair scenarios.

Identifying the Source of the Leak

Before embarking on any repairs, it's crucial to pinpoint the exact source of the leak. This will determine the necessary steps and parts required for a successful fix. Common leak locations include:

The faucet cartridge: This is the most common culprit, responsible for controlling water flow and temperature. Worn-out or damaged cartridges can lead to leaks from the spout or around the handle.
The faucet washer: This rubber component prevents water from flowing when the faucet is turned off. If the washer is worn or damaged, it can cause drips from the spout.
The faucet stem: This part connects the handle to the cartridge and can wear out or become damaged over time, leading to leaks around the handle.
The faucet aerator: Located at the end of the spout, the aerator mixes water with air to create a smooth stream. If it becomes clogged or damaged, it can cause leaks or a weak stream.
The faucet body: Leaks from the faucet body usually indicate a crack or a loose connection, which can be more complex to repair and may require professional assistance.

To identify the source of the leak, carefully observe where the water is dripping or flowing. Note the frequency and volume of the leak, as well as any unusual sounds or vibrations coming from the faucet. This information will help you determine the necessary repair steps.

Common Faucet Repair Scenarios

Once you've identified the source of the leak, you can proceed with the appropriate repair. The following scenarios outline common repair techniques for various leak types:

1. Leaky Faucet Cartridge

This is the most frequent repair scenario. If the leak is coming from the spout or around the handle, the faucet cartridge is likely the culprit. To replace it, follow these steps:

Turn off the water supply: Locate the shut-off valves for the hot and cold water lines to the faucet and turn them off. You may need to use a wrench to tighten the valves if they are stiff.
Remove the faucet handle: Depending on the faucet style, you may need to use a Phillips head screwdriver or an Allen wrench to loosen the handle screw. Once removed, the handle will come off, revealing the cartridge.
Remove the old cartridge: The old cartridge will likely have a retaining clip or nut holding it in place. Use a wrench or pliers to loosen and remove the retaining mechanism, then pull the old cartridge out.
Install the new cartridge: Insert the new cartridge into the faucet body, ensuring it's properly seated. Reinstall the retaining clip or nut, tightening it securely but not overly tight.
Replace the handle: Reattach the handle and secure it with the screw.
Turn on the water supply: Slowly turn the water back on, checking for any leaks. If the leak persists, ensure the cartridge is properly seated and the retaining mechanism is secure.

2. Leaky Faucet Washer

If the leak is coming from the spout when the faucet is turned off, the faucet washer might be worn out. To replace it, follow these steps:

Turn off the water supply: Shut off the water supply to the faucet as described above.
Remove the faucet handle: Unscrew the handle using a screwdriver or Allen wrench, depending on the faucet design.
Remove the faucet stem: The stem is located beneath the handle and is usually held in place by a nut. Use a wrench to loosen and remove this nut, then pull the stem out.
Remove the old washer: Located at the end of the stem, the washer can be easily removed by hand or with a small screwdriver.
Install the new washer: Carefully slide the new washer onto the end of the stem, ensuring it's properly seated.
Reassemble the faucet: Reverse the removal steps, reattaching the stem, handle, and tightening the nut securely.
Turn on the water supply: Slowly turn the water back on, checking for any leaks. If the leak persists, ensure the washer is properly installed and the stem is tightly secured.

3. Leaky Faucet Aerator

If the leak is coming from the aerator at the end of the spout, you can usually resolve it by cleaning or replacing the aerator. Follow these steps:

Turn off the water supply: Shut off the water supply to the faucet.
Remove the aerator: The aerator is typically threaded onto the spout. Use a wrench or pliers to unscrew it counterclockwise.
Clean the aerator: If the aerator is simply clogged, you can clean it by removing any debris with a small screwdriver or by soaking it in vinegar for a few hours.
Replace the aerator: If the aerator is damaged or cleaning doesn't resolve the leak, you'll need to replace it with a new one. Ensure the new aerator is compatible with your faucet.
Reinstall the aerator: Screw the new or cleaned aerator back onto the spout, tightening it gently with your fingers.
Turn on the water supply: Slowly turn the water back on, checking for any leaks.

These are just a few common repair scenarios for leaky bathroom sink faucets. If you're unsure about the source of the leak or feel uncomfortable performing the repairs yourself, it's always best to consult a qualified plumber for professional assistance.