FAQ

Why does my new GROHE kitchen faucet have a lower flow than my old faucet?

At GROHE, we strive to protect our planet’s resources for future generations. In order to comply with water efficiency and conservation requirements of CALGreen®, California’s Green Building Standards, all GROHE kitchen faucets have a flow rate of 1.75 gpm, and are designed to provide both water savings and superior performance.

Why is my kitchen faucet flowing at a trickle?

Because GROHE faucets are engineered with ceramic disc valves for smooth, unobstructed operation, trapped debris is commonly the cause of slow flow and can be quickly cleared. For pull-out style faucets, we recommend cleaning the coupler and the check insert in the spray head. For non-pull-out models, the aerator at the end of the spout can be easily removed and rinsed.

The supply lines on my faucet are not long enough to reach the angle stops. What can I do?

GROHE supply lines are a standard 3/8 to accommodate most installations. As a solution to special situations, we recommend either rigid or flexible extensions, which can be purchased at most hardware stores. 

Are your faucets lead free?

Yes, all GROHE kitchen and bathroom faucets are made from our proprietary high-quality brass alloy, created to meet and exceed all legal requirements for safe drinking water.   

What is the difference between thermostatic and pressure balance valves? 

These terms are often confusing so here is a simple comparison to clarify the difference. A thermostatic valve is much like the thermostat that controls the temperature in your home. Once you set the desired temperature on a thermostatic valve, the water will flow and remain constant at this temperature, regardless of a flushing toilet or running laundry. A pressure balance valve controls the hot and cold water pressure. If cold water pressure is lost, the cartridge compensates by reducing the hot water pressure to prevent scalding. 

My kitchen faucet has low pressure on the hot side. What could be the problem?

In most cases, this is caused by debris in the hot water line or port of the cartridge and is easy to remedy.

Solution 1: You can back-flush the cold water through the hot supply using these steps:

  1. Turn off the hot under the sink
  2. Disconnect the hot water supply from the faucet
  3. Place a bucket under the hot supply hose
  4. Hold your hand over the spray aerator to block water
  5. Turn the faucet on in the warm water position
  6. Cold should run out of hot supply and flush debris

Solution 2: You can also turn off the water under the sink, remove the cartridge, and push a wire through the hot supply hose to push out the blockage.

Why did I suddenly lose pressure in my kitchen faucet?

A sudden loss of water pressure in a faucet is generally an accumulation of debris in the coupler or the check valve in the spray head. In both cases, simply rinse to remove debris. In older kitchen faucets, it may be necessary to replace the coupler.