How to Remove the Water Restrictor on a Hansgrohe Kitchen Faucet

Hey there! Lillie here, your home improvement guru. If you‘re finding the water pressure from your Hansgrohe kitchen faucet isn‘t as strong as you‘d like, I‘ve got the perfect DIY fix for you to get that full pressure back – removing the internal water restrictor.

As an expert in bathroom and kitchen renovations with over 10 years of experience, I‘ve installed and repaired every type of faucet imaginable. I totally understand the frustration of having weak water pressure. Luckily, with Hansgrohe faucets, it‘s an easy job we can tackle ourselves.

In this comprehensive guide, I‘ll walk you through everything you need to know to remove the hidden flow restrictor device to get the most out of your Hansgrohe kitchen faucet.

What is a Water Restrictor?

A water restrictor, sometimes called a ‘flow controller‘, is a small disc fitted inside the faucet aerator that limits how much water can flow out of the faucet spout per minute. The standard restrictor allows only 2.2 gallons per minute (GPM).

Why are restrictors used?

Restrictors are installed in most modern faucets to comply with regulations that conserve water usage. The federal standard is 2.2 GPM, but some areas have even stricter limits. While saving water is important, sometimes these restrictors reduce the flow too much, resulting in weak pressure.

Why Remove the Restrictor?

There are a few good reasons you might want to remove the hidden restrictor device:

Increase low water pressure

Removing the restrictor eliminates the device choking down the flow, allowing the water to come through the faucet unrestricted. This results in restored full pressure.

Fill pots and containers faster

Because the flow is increased, your pots, glasses and other containers will fill up noticeably faster compared to restricted flow. No more waiting around for that cooking pot to fill up!

Improve rinsing ability

Having full pressure makes rinsing off dishes, vegetables, countertops and other surfaces much faster and more effective. Restricted flow can mean needing to rinse longer.

Enjoy the feel of full pressure

You may simply find that you prefer the wide open flow and invigorating spray of full pressure from the faucet. It makes tasks like washing hands or rinsing produce far more pleasant.

How to Remove the Hansgrohe Faucet Restrictor

Now that I‘ve helped explain what a restrictor is and why you might want to remove it, let‘s get into how to actually remove it.

I‘ll provide step-by-step instructions even a beginner can follow to remove the hidden restrictor in a Hansgrohe kitchen faucet.

The process takes about 10-15 minutes and you only need a few basic tools:

Tools Needed

• Adjustable wrench or locking pliers
• Small flat head screwdriver
• Old toothbrush or pipe brush
• Towel or cloth
• Container to place faucet parts

Here are the steps to follow:

1. Shut Off the Water Supply

The first thing to do is shut off the water supply lines underneath the sink. There is typically a shut off valve for hot and cold – turn them both clockwise until closed.

This stops the flow of water and prevents leaks while you work. Place a towel or bucket under the faucet to catch any remaining drips.

2. Remove the Aerator

The restrictor itself hides inside the faucet aerator. Use your adjustable wrench or locking pliers to unscrew the aerator by turning it counter-clockwise.

Depending on the model, the aerator may unscrew from either the side or end of the faucet spout. Place all the parts in your container so they don‘t get lost.

3. Locate and Remove the Restrictor

Inside the aerator you‘ll see the restrictor, which looks like a flat plastic or brass disc seated in the larger threaded piece.

Use the screwdriver tip to carefully pop out the restrictor disc from its setting. Set it aside safely in case you need to put it back later.

4. Clean Out the Aerator

While you have the aerator disassembled, take a moment to scrub out any debris, sediment or limescale that may have built up inside over time using a toothbrush or pipe brush.

Buildup can also block water flow, so taking the extra minute to clean everything out is worth it for optimal flow. Rinse all parts until clean before putting back together.

5. Reassemble Without Restrictor

Place the parts back into the aerator housing in the correct order, except for leaving out the restrictor disc itself. Make sure any O-rings or gaskets are seated properly in their grooves.

Once fully reassembled without the restrictor, screw the aerator back onto the end of the faucet by turning clockwise. Hand tighten firmly.

6. Turn Water Back On

The last step is to turn the hot and cold shut off valves back counterclockwise to allow water to flow again. Turn your faucet on and check carefully for any drips or leaks around the aerator.

If it leaks, tighten down the aerator more by hand or with the wrench. Let the water run for a full minute to flush out any sediment.

You can now enjoy full pressure from your Hansgrohe faucet! The flow restrictor is disabled so water can flow freely.

Tips for Removing a Hansgrohe Restrictor

I wanted to quickly share some extra pointers to make removing the hidden flow restrictor as easy as possible:

• Wrap plumber‘s Teflon tape around all threaded pieces before reassembling to prevent leaks.
• If unable to unscrew by hand, try soaking the aerator overnight in vinegar to break up limescale.
• Keep O-rings from getting lost by temporarily placing them in the open aerator cavities for safekeeping.
• Organize parts in labeled bags and take photos if dealing with a complex faucet. Make reassembly easy.
• Use needle-nose pliers for better grip if unable to remove restrictor with fingers. Take care not to damage it.
• Reinstall restrictor later if removing it causes splashing or other issues. Retain it!

Considerations Before Removing Restrictor

While I‘m all for removing annoying restrictors, let‘s go over some important considerations first:

• Permanently removing the restrictor disables water conservation limits, which may increase your water usage and bills over time.
• In some areas, flow restrictors are required by plumbing code. Know your local regulations before removing mandatory devices.
• Inspect your supply lines beforehand for leaks, which will be worsened by unrestricted pressure.
• The initial burst of full pressure may cause splashing, so be ready to divert the water into the sink.
• Anyone unused to high pressure, like kids or elderly, should take caution when using the unrestricted faucet.

Alternatives to Removing Restrictor

I always encourage trying these alternative approaches first before fully removing the flow restrictor:

• Regularly clean your aerator to prevent mineral deposits from blocking flow.
• Consider upgrading old supply lines if yours are narrow diameter pipes insufficient for high flow.
• Install an under-sink booster pump system if low overall water pressure is the main nuisance.
• Replace the entire faucet with a higher flow commercial style model.
• Use a supplemental faucet or pot filler for just the high flow tasks.

While not always perfect solutions, these options let you maintain the water savings from your Hansgrohe restrictor while still addressing pressure issues.

FAQs About Removing Hansgrohe Restrictors

Here are answers to some of the most common questions I get about removing flow restrictors from Hansgrohe kitchen faucets:

Are the restrictors in Hansgrohe faucets removable?

Definitely. Hansgrohe designs their kitchen faucets with user-removable restrictor discs inside the aerator, no special tools needed.

Where is the flow restrictor located on a Hansgrohe faucet?

You‘ll find the restrictor disc seated inside the aerator assembly at the tip of the faucet spout. You have to remove the aerator first to access it.

What is the standard Hansgrohe restrictor flow rate?

Most have restrictors that limit flow to 2.2 gallons per minute to meet regulations. Without the disc, flow is around 5 gallons per minute.

Does removing the restrictor void the Hansgrohe warranty?

Great news – Hansgrohe warranties remain fully valid if you remove the restrictor. It‘s designed as an add-on part not integral to operation.

Can I put the old restrictor back in later if needed?

Absolutely. Just pop the restrictor disc back into the spot inside the aerator when you want to restore regulated flow. Easy as that.

Will these steps work on other Hansgrohe faucet models?

Yes, other Hansgrohe kitchen faucets like pull-out sprayers and commercial styles also use removable restrictors that can be taken out the same way.

Restoring Regulated Water Flow

Let‘s say down the road you decide you want to put that hidden water restrictor back in to conserve water again. No problem!

Just follow the same steps above in reverse: shut off water, remove the aerator, pop the restrictor disc back into its spot, reassemble, and turn water back on. This will instantly take you back to the regulated flow.

I hope this guide has been helpful for explaining exactly how to remove the hidden flow restrictor in your Hansgrohe kitchen faucet. While I love the feel of full pressure, saving water is important too.

As your home renovation specialist, I say tweak your faucet to find the right balance for your home and family! Feel free to reach out with any other home improvement questions. I‘m always happy to help out.