Grohe makes high-end kitchen and bathroom faucets for commercial and residential use. Grohe tubs and faucets are always made of stainless materials that are simple to clean. Their faucets use a cartridge-based system that controls the water pressure and flow of the hot and cold water. These cartridges are intended to be replaced every three to five years under normal usage conditions. Clogged cartridges can lead to reduced water pressure as well as sediment in your water supply.
Instructions
1. Turn the main water knob to the off position. This knob is typically under the sink and attached to your pipes with a flexible metal tube. It should take half a turn to lock the water off.
2. Turn the hex key counterclockwise several times in the star-shaped aperture located beneath the faucet handle. This will loosen the faucet assembly, allowing you to remove the handle and the spigot.
3. Remove the handle and spigot by pulling them straight up and out of the assembly.
4. Attach your pliers to the cartridge, turning it 1/4 of a turn counterclockwise and then pulling it straight out.
5. Wipe down the inside of your faucet where the cartridge was seated. Drying the cartridge area will allow the new cartridge to seal better.
6. Insert the new cartridge, using the pliers to turn it 1/4 turn clockwise, locking it into place. You will hear a clicking sound when the cartridge is fully seated.
7. Replace the handle and spigot, using the hex key to tighten them into place (this will take several clockwise turns).
Tips Warnings
Grohe cartridges are replaceable, but if cleaned properly can last upwards of twenty years. Soak your cartridge for at least an hour in a vinegar and water mixture (10% vinegar, 90% water). Then scrub the cartridge with a soft toothbrush or scouring brush before returning it to the faucet.
Whenever you attempt maintenance on any of your plumbing, it is critically important that you shut the water main off first. Faucets and pipes are under heavy pressure with water that can be in excess of 100 degrees Fahrenheit. Failing to turn the water main off before performing maintenance can result in complications that can lead to serious burns and scalding.
