How To Connect A Pressure Washer Gun To A Garden Hose

How to connect a pressure washer gun to a garden hose

Pressure washing is a popular method to handle heavy cleaning jobs around your home. Whether it’s to clean concrete surfaces, your outdoor deck, or simply rinse off your vehicle, a pressure washer can make a big difference.

But if you don’t have a physical pressure washer, how do you hook a pressure washer gun to a garden hose? And what accessories will you need to do this?

Can You Hook Up A Pressure Washer Gun To A Garden Hose?

Yes, you can certainly connect a pressure washer gun to a garden hose. However, keep in mind that it won’t magically transform your garden hose into a high-pressure washer.

pressure washer spraying floor

That’s because the pressure washer’s main component is the motorized pump, which is what truly creates the high PSI water stream. If you are using a pump, you should check what size hose to use for your pressure washer.

But if your outdoor spigot water supply has a high pressure, you may get your desired water velocity output.

There’s a vital point to keep in mind: you’ll need an adapter if your garden hose and pressure washer gun have different types of connections. These adapters are typically available at hardware stores or online, so if you do encounter this issue, it should be easily solvable.

In short, you can definitely connect a pressure washer gun to a garden hose and you should get a higher velocity water output when compared to the PSI of a garden hose nozzle.

But without the high-pressure pump component, you won’t get the same high-pressure output. If you’re only aiming for a light cleaning, this setup could be just what you need!

How To Connect A Pressure Washer Gun Directly To Garden Hose

  1. Gather the necessary equipment: You will need a pressure washer gun, a garden hose, and a garden hose connector or adapter. Ensure that the pressure washer gun and garden hose connector is compatible.
  2. Connector compatibility: Verify that the pressure washer gun you have is designed to connect directly to a garden hose. Some pressure washer guns have built-in connectors specifically for this purpose. If your pressure washer gun doesn’t have a built-in connector, you may need to get an adapter or change the connector on your hose. See below for the normal types of pressure washer connectors.
  3. Prepare the garden hose: Inspect the garden hose for any damages or leaks. If you find any issues, repair or replace the hose before proceeding to increase your garden hose pressure. It’s important to have a functioning and leak-free hose to maintain the necessary water pressure.
  4. Attach the garden hose connector: If your pressure washer gun doesn’t have a built-in connector, attach the garden hose connector or adapter to the inlet port on the end of the gun. Make sure it is tightly secured to prevent any leaks.
  5. Connect the garden hose: Take the female end of the garden hose (the end with threads on the inside) and screw it onto the garden hose connector or adapter attached to the pressure washer gun. Rotate it clockwise until it is securely fastened. Ensure that the connection is tight to prevent any water leakage during operation.
  6. Turn on the water supply: Before using the pressure washer gun, turn on the water supply by opening the faucet or valve. Make sure the water is flowing through the hose without any obstructions.
  7. Test the connection: Point the pressure washer gun away from people or delicate objects and squeeze the trigger to release the water. Check if there are any leaks around the connection point. If you notice any leaks, tighten the connections further or consider using Teflon tape or a rubber washer to create a more secure seal.
  8. Start cleaning: Once the connection is secure and there are no leaks, you’re ready to start cleaning with your pressure washer gun. Adjust the nozzle or spray pattern according to your cleaning needs, and remember to follow the manufacturer’s instructions for operating the pressure washer gun safely.

What Types Of Pressure Washer Fittings Are There?

M22 Connection

The M22 is a common type of screw-on fitting used in pressure washers. The name comes from its 22mm size. It’s used in both the hose connector and the pressure washer pump outlet.

3/8 Inch Connection

This is another popular fitting size and is slightly narrower than the M22 fitting. They have male and female parts and you’ll often find them used for professional or heavy-duty pressure washers.

Bayonet Fitting

These are commonly found on Karcher pressure washers. The connector is pushed in and twisted to lock it into place.

Quick Connect

Quick Connect fittings are very user-friendly. They allow for faster and easier connection and disconnection of hoses or pressure washer guns.

pressure washer quick connect hose adapter

I personally use these connectors on my pressure washer. I don’t use it too often, so being able to connect it up quickly is great!


Swivels are fittings that allow the hose or spray gun to rotate freely, reducing the risk of kinks and twists in your pressure washer hose. These are a great timesaver if you move the pressure washer around a lot. They enhance the ease of use and longevity of your hoses.

Do You Require A High-Pressure Hose For A Pressure Washer?

While it’s not a strict requirement, it’s highly recommended. Using a high-quality pressure washer hose can be essential for maximizing the effectiveness of your pressure washing activities as they are designed to work under constant pressure.

High-pressure hoses are designed to handle a higher PSI. So they are durable and will last longer without leaking.

Whether you’re wielding an electric pressure washer or a gas-powered pressure washer, a high-pressure hose ensures that water is delivered at enough gallons per minute (GPM) to allow the spray gun or pressure washer wand at a higher PSI.

Tips for Effective Usage of Pressure Washers

When using your pressure washer, always remember to consider the average time for tasks.

It’s also crucial to keep your water inlet clear of any dirt particles to ensure smooth operation.

Also, note that for heavy-duty jobs like cleaning a concrete driveway with ease, a gas-powered pressure washer usually works better than an electric one.

Hoses Diameter and Fittings Diameter

The diameter of your hose and fittings is an important consideration. As a rule of thumb, the larger the diameter, the more water the hose can carry.

However, the fitting size must match the hose diameter for a secure and efficient connection.

What Are The Different Types Of Pressure Washer Guns?

Pressure washer guns come in a couple of types, each designed for specific tasks and user preferences. Some of the common types include:

  1. Lance Guns: Lance guns, also known as pressure washer wands, offer a longer reach and are ideal for those harder-to-reach areas. These guns allow you to control the water flow rate and pressure by simply squeezing the trigger.
  2. Rotary Guns: These guns have a rotating tip that delivers a powerful circular spray, ideal for deeper cleaning. They sometimes come with a cover to keep the water within the target area. This makes them a good choice for cleaning patios and decking.

What Are The Advantages and Disadvantages Of Using a Pressure Washer Gun?


  1. Faster Cleaning: With a pressure washer gun, you can clean surfaces at a much faster rate compared to traditional cleaning methods.
  2. Deeper Cleaning: The high-pressure water spray can get rid of tough stains and dirt, providing a deeper clean. Material can be removed from a surface that might be impossible to remove with a normal garden hose.
  3. Versatility: You can use a pressure washer gun for various tasks, from cleaning your car to washing your deck, or blasting away dirt from your driveway.


  1. Potential for Damage: If not used properly, the high-pressure spray can potentially damage surfaces or plants, especially those that are delicate.
  2. Complexity: There can be a learning curve associated with using a pressure washer gun, such as getting the correct angle and distance from the target area. This can be tricky for beginners.


Connecting a pressure washer gun to a garden hose doesn’t have to be a daunting task. With the right equipment and a bit of practice, you’ll be pressure-washing your way to a cleaner home or premises in no time.

Remember, the key is to ensure all connections are secure, choose the right pressure washer gun and fittings for your specific needs, and don’t apply too much pressure to delicate areas.


  1. Can any garden hose be used with a pressure washer?
    Yes, most garden hoses can be used with a pressure washer. However, ensure that the hose is in good condition and can withstand the pressure of the washer.
  2. Do all pressure washer guns have the same connection?
    No, they don’t. Pressure washer guns may have different types of connections depending on the brand and model. Always check the specifications before purchasing.
  3. Can you use a pressure washer without a high-pressure hose?
    Yes, it’s possible to use a pressure washer without a high-pressure hose. But a high-pressure hose will improve performance and longevity.
  4. What’s the best type of pressure washer gun for heavy-duty cleaning?
    Rotary guns are often recommended for heavy-duty cleaning due to their powerful circular spray.
  5. Is a gas-powered pressure washer better than an electric one?
    Gas-powered pressure washers are usually more powerful and efficient for larger, heavy-duty tasks. They are also portable as no power cable is needed. However, electric pressure washers can be more than sufficient for lighter tasks and are usually quieter and easier to maintain.