How To Fix Leaky Bathtub Faucet Single Handle Delta

How to Fix a Leaky Single-Handle Delta Bathtub Faucet

A leaky bathtub faucet can be a major nuisance, wasting water and driving up your utility bills. If you have a single-handle Delta faucet that's leaking, there are a few things you can do to fix it yourself. Let's explore the step-by-step process:

Step 1: Gather Materials

Before you start, make sure you have the following tools and materials on hand:

Phillips screwdriver
Flat-head screwdriver or Allen wrench
Replacement cartridge (if needed)
Paper towels or rags
Flashlight (optional)

Step 2: Turn Off Water Supply

Locate the water shut-off valves under the sink or behind the faucet. Turn them clockwise to cut off the water supply to the faucet.

Step 3: Remove Handle

Using the Allen wrench or flat-head screwdriver, remove the set screw located on the handle's base. Once the screw is removed, pull the handle straight up to detach it.

Step 4: Remove Cartridge

Now, you need to remove the cartridge. Use the Phillips screwdriver to loosen the retaining nut beneath the handle. Once the nut is loose, pull the cartridge straight out.

Step 5: Inspect Cartridge

Examine the cartridge for any damage or worn-out parts. If the cartridge is severely damaged or contains mineral build-up, it may need to be replaced.

Step 6: Replace Cartridge (if needed)

If replacing the cartridge is necessary, take the old one to the hardware store to find an exact match. Insert the new cartridge into the faucet body.

Step 7: Reinstall Cartridge and Nut

Slide the cartridge back into place and tighten the retaining nut using the Phillips screwdriver. Ensure the nut is snug but not overtightened.

Step 8: Reinstall Handle

Finally, place the handle back on the faucet and secure it with the set screw.

Step 9: Turn on Water Supply

Turn the water shut-off valves counterclockwise to restore water flow to the faucet. Check for leaks around the handle and cartridge.

Step 10: Adjust Temperature and Flow

Adjust the temperature and flow controls on the handle to ensure the water is flowing smoothly and at the desired temperature.

Additional Tips:

If the leak persists after following these steps, there may be a more significant issue with the faucet or plumbing system. Consider consulting a professional plumber.
Replace the faucet washer if it appears worn or damaged.
Regularly clean your faucet to prevent mineral build-up and leaks.