Fix A Dripping Bathroom Faucet

A dripping bathroom faucet is a common problem that can waste a lot of water and increase your water bill. There is a simple DIY solution to this problem that you can do yourself in just a few minutes, without calling a plumber. In this article, we will provide you with a step-by-step guide on how to fix a dripping bathroom faucet, and teach you the basic plumbing knowledge to understand how faucets work.

How Do Bathroom Faucets Work?

To fix a dripping faucet, it is helpful to have a basic understanding of how they work. Bathroom faucets typically have two handles, one for hot water and one for cold water. When you turn on the hot water handle, hot water from the water heater flows through the faucet and out the spout. When you turn on the cold water handle, cold water from the main water supply flows through the faucet and out the spout. The faucet has a cartridge or washer that controls the flow of water and prevents it from leaking.

What Causes a Faucet to Drip?

There are several reasons why a faucet may start to drip. The most common cause is a worn-out washer or cartridge. Over time, the washer or cartridge can become damaged or worn, which can allow water to leak past it. Other causes of a dripping faucet include:

Loose or damaged O-rings
Corroded or damaged faucet parts
Mineral buildup
High water pressure

Step-by-Step Guide to Fix a Dripping Bathroom Faucet

To fix a dripping bathroom faucet, you will need the following tools and materials:

Adjustable wrench
Phillips head screwdriver
Flat head screwdriver
Replacement washer or cartridge (if necessary)
Plumber's putty
Rags

Step 1: Turn off the water supply to the faucet. There are usually two shut-off valves under the sink, one for hot water and one for cold water. Turn both valves clockwise to turn off the water supply.

Step 2: Remove the aerator. The aerator is the small screen at the end of the faucet spout. Use a wrench to unscrew the aerator and remove it.

Step 3: Remove the handle. Use a screwdriver to remove the screws that hold the handle in place. Once the screws are removed, pull the handle straight up to remove it.

Step 4: Remove the packing nut. The packing nut is located below the handle. Use a wrench to loosen the packing nut and remove it.

Step 5: Remove the bonnet nut. The bonnet nut is located below the packing nut. Use a wrench to loosen the bonnet nut and remove it.

Step 6: Remove the old washer or cartridge. The washer or cartridge is located inside the faucet body. Use a pair of pliers to remove the old washer or cartridge.

Step 7: Install the new washer or cartridge. Apply a small amount of plumber's putty to the new washer or cartridge and insert it into the faucet body.

Step 8: Reassemble the faucet. Reinstall the bonnet nut, packing nut, handle, aerator, and turn on the water supply to check for leaks.