Stop annoying faucet leaks.

How to Fix a Leaky Single-Handle Ball Delta Kitchen Faucet

by Matt Smolsky

While Delta single-handle ball faucets are generally reliable, they can spring leaks. Years of wear and tear can result in annoying and wasteful drips from the base of handle or from the aerator. The good news is that repair kits are readily available. However, if you can't locate a Delta-brand repair kit, a universal sample should suffice as long as the package states that it will work with a Delta faucet.

1. Adjust Ring at Base of Handle

1 Close the shutoff valves under the sink. Alternatively, if there aren't shutoff valves under the sink, turn off the water at the water meter, usually in the basement or a crawl space. Turn the faucet to both hot and cold to allow each to drain completely.

2. Adjust Ring at Base of Handle

2 Remove the plastic plug from the handle of the Delta kitchen faucet by prying it off, using a slotted screwdriver. Be careful not to scratch the finish.

3. Adjust Ring at Base of Handle

3 Unscrew the hex nut under the plastic cap, using an Allen wrench. Pull the handle off of the faucet and set it aside. Put the nut in a place where it won't get lost.

4. Adjust Ring at Base of Handle

4 Tighten the ring with a spanner wrench, which should come with the repair kit. If it doesn't, purchase one from a hardware store or home center. Reattach the faucet handle, using the hex nut and Allen wrench. Turn on the water and test the faucet.

5. Replacing Seals and Springs

1 Turn off the water at the shutoff valves or water meter. Turn the handle to hot and then cold to drain all the water from each side.

6. Replacing Seals and Springs

2 Pop off the plastic plug on the handle of the Delta faucet. Unscrew the hex nut underneath the plug, using an Allen wrench. Set the handle and hex nut aside in a safe place.

7. Replacing Seals and Springs

3 Grip the cap at the top of the faucet and turn it counterclockwise. Alternatively, use adjustable pliers if the cap won't move. Wrap a plastic glove around the collar to prevent marring of the surface when using adjustable pliers.

8. Replacing Seals and Springs

4 Remove the cap and adjusting ring, cam, packing, stainless steel ball, seats and springs. Pay close attention to the order in which the parts are removed.

9. Replacing Seals and Springs

5 Install the new parts that came with your repair kit in the same order you removed the old parts.

10. Replacing Seals and Springs

6 Reattach the cap and adjusting wring. Do not to overtighten it.

11. Replacing Seals and Springs

7 Reattach the handle of the Delta kitchen faucet, using the hex nut and Allen wrench. Turn on the water and test the faucet.

Items you will need

  • Delta faucet repair kit
  • Slotted screwdriver
  • Allen wrench
  • Spanner wrench
  • Adjustable pliers
  • Rubber gloves

Tips

  • Look at where the faucet is leaking. If it's from the base of the handle, you may be able to fix the leak by tightening the adjusting ring at the base of the handle. If it's dripping from the aerator, you'll have to replace the seats and springs.
  • Before disassembling the the springs and seals, take a digital photo of the assembly. This will help you remember what it should look like when you put it back together.
  • While each individual part you removed from your single-handle Delta kitchen faucet may look fine, it's best to replace everything.

Photo Credits

  • Michael Blann/Digital Vision/Getty Images