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Remove The Old Cartridge — Remove the Old Valve Cartridge

Beginner3 hours

Part of project

Delta Shower Faucet Valve & Handle Replacement: A Step-by-Step Guide · Step 4 of 7

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In this video

With the handle and trim removed, you can now access the old cartridge. First, use channel-lock pliers to grip and unscrew the large bonnet nut that holds the cartridge in place. Once the nut is off, use needle-nose pliers to grip the stem of the old cartridge and pull it straight out of the valve body. If it is difficult to remove, a cartridge puller tool can be used. Inspect the old cartridge to see the worn-out seals or cracks that were causing the leak.

Goal: Remove Old Cartridge

  • If the cartridge is stuck due to mineral buildup, a cartridge puller can provide the necessary leverage without damaging the plumbing.

Used in this video

  • Channel-Lock Pliers (Tool Type: Hand Tools, Pliers Type: Channel-lock) — Unscrewing the bonnet nut
  • Needle-Nose Pliers (Tool Type: Hand Tools, Pliers Type: Needle-nose) — Gripping and pulling out the old cartridge
  • Cartridge Puller (Tool Type: Plumbing Tools) · optional — Removing a stuck cartridge
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FAQs

What if my old shower faucet cartridge is stuck and won't come out?

First, double-check that all retaining clips or nuts have been completely removed. If it's still stuck, try gently wiggling or rotating the cartridge with pliers or a cartridge puller to break its seal. A small amount of penetrating lubricant can help, but apply it carefully to avoid damage to the valve body or new seals.

I've turned off the water supply, but the shower still drips. What should I do before proceeding?

Ensure you've turned off the correct water supply valves, ideally both hot and cold lines leading to the shower, or the main house shut-off valve. If it continues to drip, your shut-off valves may be faulty and need repair or replacement themselves before you can safely work on the shower faucet.

Is this project genuinely suitable for beginners, and how long should I realistically expect it to take?

Yes, this project is considered beginner-friendly as it primarily involves basic disassembly and reassembly. While the estimated time is 3 hours, a careful beginner should allow a bit more time, especially if the cartridge is stubborn or if they need to locate the main water shut-off. Take your time and follow each step.

Do I need a specific Delta replacement cartridge, or will any universal cartridge work?

It is crucial to use a genuine Delta replacement cartridge or an exact aftermarket equivalent specifically designed for your Delta faucet model. Universal cartridges rarely fit perfectly and can lead to leaks, improper water flow, or difficulty controlling temperature. Always match the model number of your existing cartridge or faucet for the best results.

Transcript
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Degental to avoid damaging the tile or wall surface. Now here's the fun part removing the old cartridge. You'll see the cartridge inside the valve body. Use your needle nose pliers to grip the cartridge and pull it straight out if it's stuck. Don't force it. You can use a cartridge puller tool I'll link one below to make this step easier. Once the cartridge is out, take a moment to inspect it. You'll probably see worn out seals or cracks that's what's causing the leak. Toss the old cartridge aside. We won't be needing it anymore.

Auto-generated transcript. May contain errors.