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Remove Retaining Clip and Old Cartridge — Extract the Old Cartridge

Beginner3 hours

Part of project

How to Replace a Leaky Shower Cartridge (Delta Monitor & Moen Models) · Step 4 of 6

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In this video

Identify the U-shaped retaining clip at the top of the valve that holds the cartridge in place. Use a small flathead screwdriver or needle-nose pliers to pry the clip upward and pull it completely out of the valve body. If the clip is difficult to remove, try pushing the cartridge further into the valve to relieve pressure on the clip. With the clip removed, firmly grip the stem of the old cartridge with a pair of pliers and pull it straight out of the valve.

Goal: Extract the old shower cartridge from the valve body.

  • If the locking pin is stuck, push on the cartridge to release pressure on the pin, making it easier to remove.

Used in this video

  • Small Flathead ScrewdriverPrying up the retaining clip.
  • Pliers (Pliers_Type: Slip_Joint)Gripping and pulling out the old cartridge.
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FAQs

How difficult is it to replace a shower cartridge, and what should I expect for time and cost?

This project is rated as "beginner" and typically takes about 3 hours for someone with basic DIY skills. The main cost will be the replacement cartridge itself, which varies by brand (Delta or Moen) and model, usually ranging from $30-$80.

What specific tools do I absolutely need before I start this project?

You'll definitely need Phillips and flathead screwdrivers, an adjustable wrench, and tongue and groove slip joint pliers. Also, have a rag for drips and plumber's grease for new O-rings. Ensure you have the correct replacement cartridge for your specific faucet model.

What are the most crucial safety precautions I need to take before starting this cartridge replacement?

The most critical step is to completely shut off the main water supply to your house or specifically to the bathroom before starting. After shutting off, open a nearby faucet to relieve any remaining pressure in the lines. Protect your tub/shower finish from dropped tools.

How do I make sure I buy the exact right replacement cartridge for my specific shower?

To ensure you get the correct cartridge, first try to identify your faucet's brand (Delta Monitor or Moen) and model. Often, the old cartridge will have a model number printed on it; take a photo of it. If not, consult your faucet's manual or remove the old cartridge and take it to a plumbing supply store for identification.

Transcript
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it straight off of the valve. Under that, you'll find a small locking pin using a small flat blade screwdriver to gently lift it up. Now this leads us to tip number one. If the locking pin won't come out easy, then you might need to push on the cartridge to release any pressure on the pin and then it should come out easily. Once the pin has been removed, you can pull the cartridge straight out using a pair of pliers. Now is a good time to clean up the valve,

Auto-generated transcript. May contain errors.