That steady drip, drip, drip is more than an annoyance. A leaking faucet can waste a surprising amount of water over time, and it often gets worse. The good news is that many drips come from a small worn part, and replacing it is a manageable job for a beginner.
This guide walks through the basics. Faucet designs vary, so always check the manufacturer’s instructions for your model, and call a plumber if you are unsure or if you find corrosion or leaks you can’t explain.
Step 1: Identify your faucet type
Most household faucets fall into four groups:
- Compression faucets have separate hot and cold handles that you turn several times. They usually use rubber washers.
- Ball faucets have a single handle that moves over a rounded cap. They use springs, seals and a ball.
- Cartridge faucets have one or two handles and use a cartridge that moves up and down or side to side.
- Ceramic disc faucets are single-handle models that use two ceramic discs in a cylinder.
Knowing which type you have tells you which parts to look for. If you can’t tell, look for a model number on the faucet or search the brand’s website.
Step 2: Gather simple tools and supplies
You will likely need:
- An adjustable wrench and a screwdriver set.
- Allen keys, in case a set screw holds the handle.
- Pliers.
- A small towel or rag.
- Replacement parts that match your faucet, such as washers, O-rings or a cartridge. Take the old part to the store to match it.
- Plumber’s grease.
Step 3: Turn off the water
Look under the sink for the shutoff valves and turn them clockwise until they stop. Then open the faucet to release any remaining water and pressure. Close the drain or place a cloth over it so that small screws can’t fall down it.
Step 4: Remove the handle and take it apart
Pry off any decorative cap with a small flat screwdriver, then unscrew the handle. Use the wrench to remove the packing nut or retaining ring, and lift out the stem or cartridge. Keep the parts in the order you remove them, and take a phone photo at each step to help you reassemble.
Step 5: Find the worn part
Look closely at what you have removed.
- In a compression faucet, a worn rubber washer at the bottom of the stem is a frequent cause of drips. Check the O-ring as well.
- In a cartridge faucet, a worn cartridge or O-rings can cause a leak. Replacing the entire cartridge is often easiest.
- In ball and disc faucets, the seals, springs or discs may be worn. Many manufacturers sell repair kits.
Check the valve seat as well, which is the metal surface the washer presses against. If it is rough or corroded, it may cause a drip even with new parts and can be smoothed or replaced.
Step 6: Replace and reassemble
Put a thin layer of plumber’s grease on new rubber parts, then reassemble in reverse order using your photos as a guide. Tighten snugly but don’t over-tighten, because you may crack parts or strip threads.
Step 7: Test it
Turn the shutoff valves back on slowly and open the faucet to let air escape. Check for drips around the base and under the sink. Leave a dry paper towel beneath the connections for a few hours to catch any slow leaks.
Safety and good habits
- Always turn off the water before you start.
- Wear eye protection if you are working with old, brittle parts.
- If the shutoff valve doesn’t work, you may need to turn off the home’s main water supply.
- Don’t force parts that won’t move. Penetrating oil and patience can help, but stop if you risk damage.
When to call a professional
Call a plumber if the shutoff valves leak or won’t close, if pipes are corroded, if water appears inside the wall or cabinet, or if the leak continues after you have replaced the parts. Fixing a bigger problem early can be cheaper than waiting.
Wrap-up
A dripping faucet is one of the most approachable home repairs. Identify the type, turn off the water, replace the worn part and test. With a few basic tools and a little patience, you can stop the drip and save some water along the way.
Image: Tap and window bessengue (Unsplash) by Edouard TAMBA tamba via Wikimedia Commons, CC0 1.0
