Grohe Bathroom Faucet Cartridge Replacement

A leaking bathroom faucet is a common plumbing issue that can waste water and increase your utility bills. If your Grohe bathroom faucet is leaking, it's likely that the cartridge needs to be replaced. Replacing a Grohe faucet cartridge is a relatively simple task that can be completed in about 30 minutes.

Tools and Materials

Replacement Grohe faucet cartridge
Adjustable wrench
Hex key
Phillips screwdriver
Bucket
Soft cloth

Step-by-Step Instructions

Turn off the water supply. There should be two shut-off valves located under the sink. Turn both valves clockwise to turn off the water supply.
Open the faucet. This will release any remaining water pressure in the faucet.
Remove the aerator. The aerator is the small, round piece attached to the end of the faucet spout. Use a wrench to unscrew the aerator and set it aside.
Remove the handle. There may be a small screw holding the handle in place. If so, remove the screw using a screwdriver. Then, pull the handle straight up to remove it.
Remove the cartridge cap. The cartridge cap is located at the base of the faucet handle. Use a hex key to loosen the cartridge cap and then remove it by hand.
Remove the old cartridge. Grip the old cartridge and pull it straight up to remove it.
Install the new cartridge. align the new cartridge with the faucet body and push it straight down into place.
Replace the cartridge cap. Screw the cartridge cap back into place using a hex key.
Replace the handle. Push the handle straight down onto the faucet body. If there was a screw holding the handle in place, reinsert the screw.
Replace the aerator. Screw the aerator back onto the end of the faucet spout.
Turn on the water supply. Open the two shut-off valves under the sink to turn on the water supply.
Check for leaks. Check the faucet for any leaks. If there are any leaks, tighten the cartridge cap or handle as needed.

Tips

If you're not sure which Grohe faucet cartridge you need, you can contact Grohe customer service at 1-800-444-4764.
Be careful not to overtighten the cartridge cap or handle, as this can damage the faucet.
If you're not comfortable replacing the faucet cartridge yourself, you can call a plumber for assistance.