Friday, September 14, 2012

How to Fix a Leaking Delta 1400 Series Tub / Shower Faucet by Replacing the Cartridge

A couple of months ago, I noticed that my 1400 series Delta faucet in my tub/shower was leaking slowly. Not wanting to pay a plumber for the repair, I decided to complete a repair on my own. While I worked, I captured the steps that I took on video so that other people who need to make a similar repair could use it for reference material. I insert the video that resulted at the end of this post. For your reference, I'm also going to post the parts and tools that can be used to complete the repair.



Completing the repair requires very few parts. All you need is a new Delta 1400 series faucet valve. This is the one I got and it worked great:
Alternatively, if you don't want to replace the whole faucet, it is possible to replace the seats and springs and see if that fixes the leak. This may save you some money if you're on a budget. I decided to replace the entire cartridge though just in case the leak wasn't related just to the seats and/or springs.
The parts above are genuine Delta replacement parts, selected so that when you do the repair, you're using parts that match your faucet exactly.


The tools that I used to complete the repair were similar to the following. I've chosen tools here that are well-priced but also have a reputation for being good quality, so you get the most value for your money. These are tools you can buy once and use for years and years:



To complete the repair, I took the following steps (as outlined in the video below). For your convenience, I've also produced a printable PDF of these steps.

  1. Shut off the water supply to the tub/shower.
  2. Remove the knob center cap.
  3. Unscrew and remove the knob.
  4. (optional) Unscrew and remove the backing plate. Only required if you want to re-caulk it.
  5. Slide off the outside sleeve.
  6. Remove the brass bonnet.
  7. Remove the old cartridge.
  8. Clean any debris from inside pipe.
  9. Insert new cartridge. The cartridge is marked with "hot side" on the cartridge rim. Insert cartridge so the "hot side" is on the same side as the hot water line (usually left). At this point you may also want to adjust the rotational limit stop (see instructions included with cartridge).
  10. Thread and tighten the brass bonnet.
  11. (optional) Clean old calk from backing plate and wall. Only required if you completed step #4.
  12. Slide outer sleeve back on.
  13. (optional) Replace the backing plate and screw it in place. Only required if you completed step #4.
  14. Replace the knob and screw in place.
  15. Replace the center cap.
  16. Turn the water supply back on and check for leaks.
  17. (optional) Re-caulk the backing place if required.




  1. I am having problem removing my handle. My handle doesn't look like yours in the picture but it is delta 1400 written on plate.

  2. Thank you very much for this fine video it has been extremely helpful to me and now I know exactly what I need to do to replace the cartridge so that my Faucet no longer leaks.