How to use a pressure washer gun

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Hello, I am Santy, the funder of I have been in cleaning machinery field for more than 5 years now, and the purpose of this article is to share with you the knowledge related to pressure washer from a Chinese supplier's perspective.

Pressure washing has completely transformed the way we clean different surfaces. It is now quicker, more effective, and requires less work. The pressure washer gun stands out as the primary interface between the operator and the machine’s cleaning power among the essential components of a pressure washer. Whether you’re a homeowner looking to improve your outdoor space or a professional cleaner tackling large-scale projects, mastering a pressure washer gun is essential to achieving the best results.

BISON will cover everything from pressure washer gun operation basics to advanced techniques for tackling tough stains and delicate surfaces. By following the instructions and safety precautions outlined here, you will achieve superior cleaning results and ensure the longevity of your pressure washer equipment.


What is a pressure washer gun? A Comprehensive Guide

At the heart of every pressure washer’s remarkable cleaning capabilities is the pressure washer gun, a tool designed for precision, versatility, and power in pressure washer tasks. By compressing water and forcing it through a narrow outlet under controlled conditions, these guns amplify the water’s natural cleaning properties.

Its primary components include the trigger gun, lance, and nozzles, each playing a critical role in the tool’s operation. The trigger gun acts as the control center, allowing the operator to release or stop the flow of water. The lance extends the reach of the gun, directing the water precisely where it’s needed, while the nozzles dictate the shape and intensity of the water jet.

Pressure washer guns can be broadly categorized into two types: adjustable and fixed. Adjustable guns allow for control over the pressure and pattern of the water spray directly from the gun, offering versatility for a range of cleaning tasks without the need to change nozzles. Fixed guns, on the other hand, rely on a predetermined pressure setting and require nozzle changes to adjust the spray pattern.

Preparation for pressure washing

Preparation for pressure washing is essential to ensure a safe and effective cleaning process. This includes taking necessary safety precautions, checking equipment and safety gear for any damage, and selecting the appropriate settings for the task at hand.

1)Check protective equipment

This entails donning the appropriate safety gear, such as sturdy shoes to avoid slipping, safety glasses to shield your eyes from debris and water splashes, and hearing protection. Additionally, clothing covering your skin can protect you from any backslash or spray.

Remember, you should avoid pointing the gun at yourself or others; never aim it at electrical outlets or appliances. Follow the manufacturer’s instructions and guidelines for safe operation.

2)Inspecting the pressure washer and gun for any damage

Inspecting your pressure washer and gun before each use is essential to ensure they are in proper working condition. Look for any indications of wear or damage, like cracks, leaks, or damaged components. Pay close attention to the hose, trigger, wand, and nozzle, as these components are involved in the pressure washing process. If you notice any problems, it is essential to address them immediately to avoid accidents or damage to the equipment.

3)Choosing the proper nozzle for the job at hand


Pressure washer nozzles come in different sizes and spray angles, each appropriate for a particular task. For stubborn stains, a narrow nozzle with a concentrated spray pattern works best; for larger surface areas, a wide nozzle with a fan spray pattern works best.

4)Connecting the pressure washer gun to the pressure washer

Before connecting the pressure washer gun, ensure the machine is turned off, and the water supply is connected and turned on. Locate the hose connection on the pressure washer and securely attach the high-pressure hose by twisting it onto the fitting. Next, click the other end of the hose to the inlet of the pressure washer gun, ensuring a tight connection to prevent leaks.

Operating the pressure washer gun

Operating a pressure washer gun requires attention to detail and proper technique to ensure effective cleaning and safety. In this section, we’ll explore the steps involved in how to use a pressure washer gun.

1) Site pre-cleaning

Before starting cleaning removing loose debris such as leaves or rocks from the area is advisable. This makes the cleaning process smoother and prevents the pressure washer from propelling these materials dangerously.

2) To start the pressure washer and adjust the settings

Once the pressure washer gun is attached, start the machine according to the manufacturer’s instructions. This usually involves turning on the water supply, starting the engine, or activating the electric motor.

Low-pressure settings suit more delicate surfaces, while higher-pressure settings are necessary for more demanding cleaning jobs. Consider the surface material and the level of dirt or grime when determining the proper pressure setting.

3) Proper handling and gripping techniques

When operating the pressure washer gun, maintain a firm grip on the handle to ensure control and stability. Place your hands comfortably on the handle, one on the trigger and the other supporting the gun. Keep your fingers away from the trigger when not actively spraying to prevent accidental release of water.

4) Keeping a safe distance from surfaces to be cleaned

To prevent damage or injury, keep a safe distance between the pressure washer gun and the surface that needs to be cleaned. Start by holding the gun 2 to 3 feet from the surface and gradually moving closer to achieve the best cleaning results. Avoid having the gun too close, especially when using high-pressure settings, as this can damage delicate surfaces or cause injury from the force of the water.

5)Techniques for moving a pressure washer gun quickly and efficiently

When moving the pressure washer gun over a surface, use smooth, sweeping motions to ensure coverage and thorough cleaning. Beginning from the bottom and incrementally working upward is a strategic method to prevent streaking, especially on vertical surfaces. Take care to overlap each pass slightly to avoid leaving washed areas behind. Additionally, please pay attention to the angle of the spray pattern, adjusting it as needed to direct the water where it is most effective.

7) Safely Shutting Down

To safely close the pressure washer gun, release the trigger and turn off the machine. If your pressure washer has a safety lock on the trigger, engage it to prevent accidental spraying during shutdown.Next,disconnect the spray gun from the hose and the machine.

Finally,rinse the gun, lance, and nozzles with clean water to remove any residual detergent or debris. Dry thoroughly before storing in a cool, dry place, safeguarding the equipment from damage and ensuring it’s ready for the next cleaning task.

using a pressure wash gun

common problems encountered when using pressure washer guns

Low pressure

There are many reasons for low water pressure, such as clogged nozzles, insufficient water supply, or air leaks in the system.

Check the water supply: Make sure the water supply is turned on and provides sufficient water flow to the pressure washer.

Clogged nozzles

Dirt, debris, or mineral deposits can build up inside the nozzle over time, blocking the flow of water and affecting cleaning results.

Check the nozzle: Remove the nozzle of the pressure washer gun and look for any damage or blockage. Use a small wire or cleaning tool to thoroughly clean the nozzle and remove any blockages.

Leaking or damaged hose

Cracks, holes, or loose connections in a high-pressure hose can cause leaks and reduce the efficiency of your high-pressure cleaning gun.

Check for leaks: Inspect the high-pressure hose and connections for signs of damage or leaks. Tighten loose connections as needed and replace damaged hoses or fittings.


With BISON’s explanation, you can complete various cleaning tasks with confidence. However, the power of a pressure washer gun is matched by the responsibility of safe use and proper maintenance. Proper handling, proper distance and correct nozzle selection are key practices in preventing accidents and damage. Your knowledge of how to select, operate and maintain a pressure washer gun will not only ensure optimal cleaning results, but also safety and sustainability.

Welcome to the Bison family, where we strive to set new benchmarks in the cleaning industry. From purchase, use to maintenance, Bison provides a full range of customer service and technical support to ensure that customers can use various cleaning products efficiently and smoothly.

How To Use A Pressure Washer Gun Frequently Asked Questions

Dirt, debris, or mineral deposits can build up in the nozzle over time, obstructing water flow and affecting cleaning performance.

To prevent nozzle blockages, regularly inspect and clean the nozzle to remove dirt, debris, and mineral deposits. Use nozzle cleaning tools or a small wire to remove any blockage. Additionally, flush the system with clean water after each use to avoid buildup.

Low water pressure can be caused by various factors, such as a clogged nozzle, insufficient water supply, or air leaks in the system.Ensure the water source is on and provide adequate water flow to the pressure washer.

Cracks, holes or loose connections in the high pressure hose can cause leaks and reduce the efficiency of the high pressure cleaning gun. Inspect the high pressure hose and connections for signs of damage or leaks. Tighten loose connections as needed and replace damaged hoses or fittings.

Extra care is needed when pressure washing delicate surfaces such as wood or plaster to prevent damage. Use wide-angle nozzles and low-pressure settings to minimise the possibility of surface erosion, dents and scratches. Keep the nozzle away from the surface, work in small areas, and don’t stay in one place for too long.

You can test the pressure washer in a small, inconspicuous area before cleaning it thoroughly to make sure it won’t cause damage.

When moving the pressure washer gun over a surface, use a smooth sweeping motion to ensure coverage and thorough cleaning. Avoid hard or sharp motions that may cause streaks or missed spots. Take care to slightly overlap each cleaning to avoid leaving cleaned areas. Also, note the angle of the spray pattern and adjust as necessary to direct the water to the most effective areas.


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