Skip to main content

Remove cartridge — Remove the Retaining Clip or Nut

Beginner2 hours

Part of project

Shower Valve Cartridge Replacement: A Step-by-Step DIY Guide · Step 4 of 8

Helpful?

In this video

Remove the retaining clip and pull out the old cartridge. Use needle nose pliers to remove the retaining clip. Attach the cartridge puller to the cartridge and use an adjustable wrench to pull out the old cartridge. If it breaks, remove all pieces.

Goal: Prepare for new cartridge installation.

  • If the cartridge is really stuck you can try using penetrating oil. Just be sure to use a rag to keep it from getting all over the shower.
  • If the cartridge is stuck you can use a cartridge puller

Used in this video

  • Needle nose pliers (Tool Type: Pliers, Power Source: Manual) · optionalRemoving retaining clip.
  • Cartridge puller (Tool Type: Other, Power Source: Manual) · optionalRemoving cartridge.
  • Adjustable wrench (Tool Type: Adjustable wrench, Power Source: Manual) · optionalTurning cartridge puller.
1.3K views43 minutes
This Old House

2.2M subscribers

View Channel

FAQs

Is replacing a shower valve cartridge a genuinely beginner-friendly DIY, and how long should I expect it to take?

Yes, it is considered a beginner-friendly project, primarily involving basic removal and reinstallation steps. While the estimated time is 2 hours, allow for extra time, especially if you encounter stubborn or corroded parts.

What specific tools and materials are essential for this shower cartridge replacement project?

You will need screwdrivers (multi-bit is useful), pliers, and the new shower valve cartridge itself. Don't forget plumber's grease to lubricate the O-rings on the new cartridge for a proper seal and easier installation.

What if I encounter difficulty removing the old cartridge or its retaining clip/nut?

For older fixtures, parts can be corroded. Apply penetrating oil and let it soak, then use sturdy pliers to gently wiggle and pull the cartridge out. Ensure you are using the correct type and size of pliers for the retaining clip or nut to prevent stripping or damage.

What is the most critical safety step I need to take before starting this project?

The most crucial step is to completely shut off the water supply to your shower, or ideally, to your entire home, before you begin any disassembly. Failure to do so can result in significant water damage and flooding.

Remove cartridge — Shower Valve Cartridge Replacement: A Step-by-Step DIY Guide (Step 4, Video 3) | Stesso