How to Replace a Gerber Shower Cartridge

Replacing a shower cartridge is a relatively simple DIY task that can be completed in about an hour. Here's a step-by-step guide to help you replace a Gerber shower cartridge:

Tools and Materials Needed:

- Adjustable wrench

- Phillips-head screwdriver

- Flat-head screwdriver

- Replacement Gerber shower cartridge

- Plumber's grease

Step 1: Turn Off the Water Supply

Locate the water supply valves for the shower. These valves are usually located behind the shower faucet or under the sink. Turn both valves clockwise to turn off the water supply completely.

Step 2: Remove the Shower Handle

Use a Phillips-head screwdriver to remove the screws that hold the shower handle in place. There may be one or two screws located on the side of the handle or underneath it. Once the screws are removed, pull the handle straight off.

Step 3: Remove the Cartridge Retainer Clip

Inside the shower valve housing, you'll see a retainer clip that holds the cartridge in place. Use a flat-head screwdriver to pry the retainer clip up and remove it.

Step 4: Remove the Old Cartridge

Grip the old cartridge with an adjustable wrench and turn it counterclockwise to loosen it. Once it is loose, you can pull the cartridge straight out of the valve housing.

Step 5: Inspect the Valve Seat

Before installing the new cartridge, inspect the valve seat for any damage or debris. If there is any damage, it will need to be repaired or replaced. Clean the valve seat with a soft cloth to remove any debris.

Step 6: Lubricate the New Cartridge

Apply a small amount of plumber's grease to the O-rings on the new cartridge. This will help to ensure a smooth and leak-free installation.

Step 7: Install the New Cartridge

Insert the new cartridge into the valve housing and turn it clockwise until it is snug. Be careful not to over-tighten the cartridge, as this can damage it.

Step 8: Replace the Cartridge Retainer Clip

Replace the retainer clip that holds the cartridge in place. Make sure that the clip is securely in place.

Step 9: Reinstall the Shower Handle

Align the shower handle with the valve stem and push it back into place. Secure it with the screws you removed in step 2.

Step 10: Turn on the Water Supply

Open the water supply valves that you closed in step 1 to turn the water supply back on.

Step 11: Test the Shower

Turn on the shower and check for leaks. If there are any leaks, tighten the cartridge or the retainer clip until the leak stops.

Congratulations! You have successfully replaced the Gerber shower cartridge. Enjoy your newly functional shower!