A Guide to Repairing a Delta Faucet

  • 01 of 08

    Repair A Leaky Delta Faucet

    Dripping faucet
    Jupiterimages/Stockbyte/Getty Images

    With age and time a faucet may begin to drip. This is a common problem that can usually be solved with a new rubber seat and spring. This Delta faucet repair guide shows you how to repair the leak in a few easy steps.

    Tools and Materials You Will Need

    • Pliers
    • Screwdriver or Allen Wrench
    • New rubber seat and spring
    • Stem grease
    • Possibly a new stem (see note below)

    Note: You may also need to change the stem if:

    • The handle is stiff when turning on the faucet
    • Leak around the handle when the faucet is on
    • Replacing...MORE the seat and spring doesn’t stop the leak
    Continue to 2 of 8 below.
  • 02 of 08

    Remove The Faucet Handle

    Delta Faucet Handle
    Aaron Stickley
    With this plumbing repair you need to start by shutting off the water to the faucet.

    Remove the faucet handle either by using an Allen key on the side of the handle or by unscrewing the handle.

    Note: For some faucets you will need to remove the cap from the top of the handle to access the screw.

    Continue to 3 of 8 below.
  • 03 of 08

    Remove The Bonnet Nut

    Removing the bonnet nut
    Aaron Stickley
    Once the handles are removed you will have access to the bonnet nut that is holding the stem in place. Since the seat and spring are located under the stem you will need to remove it.

    Use either a pair of pliers or a crescent wrench to unscrew the bonnet nut and pull it straight up.

    Continue to 4 of 8 below.
  • 04 of 08

    Remove The Stem

    Removing a Delta faucet stem
    Aaron Stickley
    Now you can remove the stem and access the seat and spring that need to be replaced. With a pair of pliers pull the stem straight up and out.

    Important - note the position of the stem. You will be putting the new stem in the same direction the old stem was facing or reinstalling the old stem if it does not need replacing in the same position it was taken out in.

    Continue to 5 of 8 below.
  • 05 of 08

    Remove The Seat and Spring

    Removing the seat and spring of Delta faucet
    Aaron Stickley
    Once the stem is out you can look inside the faucet handle opening where the stem usually sits. You will see the rubber seat and spring at the bottom of the opening. Remove these by putting a small screwdriver or Allen key inside and pulling them up.
    Continue to 6 of 8 below.
  • 06 of 08

    Install New Seat And Spring

    Replacing the rubber seat and spring
    Aaron Stickley
    Put the new rubber seat over the new spring. They should line up just like the old ones. To put them into place, once again you can use a screwdriver or Allen key.

    Put the seat and spring onto the end of your screwdriver and push them into the faucet body. Remove the screwdriver and look inside the faucet to make sure they are still properly aligned.

    Continue to 7 of 8 below.
  • 07 of 08

    Replace The Stem

    Replacement Delta Faucet Stem
    Aaron Stickley
    Now you can put the stem into place. First grease the o-ring at the base of the stem with stem grease. Install the stem by aligning the tabs on the stem with the slots in the body.

    Make sure the stem is pushed all the way down before you replace the bonnet nut. Put the bonnet nut back in place and screw it in using a pair of pliers.

    Continue to 8 of 8 below.
  • 08 of 08

    Check For Leaks

    Delta faucet handle
    Aaron Stickley
    Before you re-install the handle check for leaks by turning the water on and loosely turn the faucet on and off several times.

    Once you have determined that there are no more leaks you can put the handle back on.