How to Replace a Delta Faucet Shower Cartridge | DIY Plumbing Repair

Introduction

This tutorial will guide you through the process of replacing a Delta faucet shower cartridge, an essential repair for fixing leaky faucets. Whether you have a 13/14 Series, 17 Series, or 17T Series shower, this step-by-step guide will help you identify the correct cartridge, perform the replacement, and ensure your shower functions properly.

Step 1: Prep the Area

Before starting the repair, prepare your workspace to make the process smoother.

• Gather Tools and Materials: You will need the following tools:
  • Screwdriver (flathead and Phillips)
  • Adjustable wrench
  • Plumber's grease
  • Replacement cartridge (specific to your shower series)
• Turn Off the Water Supply: Locate the water shut-off valves and turn them off to prevent any leaks or water flow during the repair.
• Clear the Area: Remove any items around the shower to create a clean workspace.

Step 2: Identify Which Cartridge You Need

Determine the correct cartridge for your Delta shower faucet.

• 13/14 Series Showers: If your shower falls into this category, you may need cartridges like RP19804 or RP46074.
• 17 Series Showers: For this series, look for cartridges such as RP46463 or RP46073.
• 17T Series Showers: Check for cartridge RP4720.

You may want to refer to the manufacturer's documentation or consult the product website for specific part numbers.

Step 3: Remove the Shower Handle and Valve Cartridge

Carefully take apart the existing setup to access the cartridge.

1. Remove the Handle:
   • Use a screwdriver to remove any screws securing the handle.
   • If necessary, gently pry off the handle using a flathead screwdriver.
2. Take Out the Cartridge:
   • Use an adjustable wrench to loosen the retaining nut.
   • Pull the old cartridge straight out. If it's stuck, gently wiggle it back and forth while pulling.

Step 4: Install the New Shower Cartridge and Reassemble the Shower Handle

Now that the old cartridge is removed, it’s time to install the new one.

1. Insert the New Cartridge:
   • Align the new cartridge with the valve body and push it into place.
   • Ensure it is seated properly.
2. Secure the Cartridge:
   • Reattach the retaining nut using the adjustable wrench. Be careful not to overtighten.
3. Reattach the Handle:
   • Place the handle back onto the cartridge.
   • Secure it with screws, ensuring it is tight but not overly forceful.

Step 5: Replace Seats, Springs, or Quad Seals (For 17 Series Showers)

If necessary, you can also replace the seats and springs for better performance.

1. Remove Old Seats and Springs:
   • Use a small flathead screwdriver to pry out the old seats and springs.
2. Install New Seats and Springs:
   • Place the new seats and springs into their respective slots.
   • Ensure they are properly seated.

Conclusion

You have successfully replaced your Delta shower cartridge! Remember to turn the water supply back on and check for any leaks. Regular maintenance can prolong the life of your faucet, and handling minor repairs like this can save you time and money. For further assistance or to explore additional guides, check out the GreyDock website or their YouTube channel for more DIY plumbing repair tips.