How to Dispense Detergent with a Pressure Washer?

by Priscilla

It’s no secret that a pressure washer is an incredibly powerful cleaning tool.

However, what might be less known is that you can use different types of detergents with your pressure washer to achieve different results?

So, what about the detergent? How do you dispense it properly, and which type should you use? This blog post will discuss the different types of detergents available for pressure washers and how they can help you achieve the best possible results when cleaning.

Types of Detergents to Use with Your Pressure Washer

One of the most popular detergents for pressure washers is an acid-based detergent. This type of detergent is perfect for cleaning surfaces with a lot of grease or dirt build-up, as it helps to break down these substances and remove them from the surface.

Another common type of detergent is an alkaline-based detergent. This type of detergent is perfect for cleaning surfaces covered in mold or mildew, as it helps to kill these spores and remove them from the surface.

In addition to these two types of detergents, there are also a variety of other specialized detergents available for specific applications. For example, some detergents are designed to remove graffiti or clean vinyl siding.

How to Use Detergent with A Pressure Washer for Cleaning Purposes

It’s important to note that while these detergents are designed to work with pressure washers, they do so in a very different way than you would use soap in the shower.

The pressure washer comes with a detergent tank to fill the desired detergent. So after you have filled the detergent in the tank, turn on the valve to spray. Make sure to use the low-pressure nozzle as the high-pressure nozzle doesn’t work with detergent. Then, start spraying in an inward motion to avoid streaking.

Wait for 5-10 minutes to lose the dirt, but you should also be careful to avoid using too much detergent, as this can cause a foaming reaction and make it difficult for the water to rinse the surface clean.

After you are done with the spraying process, switch the detergent valve off and squeeze your spray nozzle trigger to flush out all detergent in the line. Finally, always remember to rinse the surface thoroughly at the water with a high-pressure nozzle, as any leftover detergent can cause damage or staining.

When choosing a detergent to use with your pressure washer, it is important to consider the specific surface you are trying to clean. Different types of detergents are designed for different applications, so make sure to choose the right one for your needs.

Avoid Using Strong Chemicals  

Remember to read the instructions carefully before using a detergent, as improper use can cause damage to both the surface you are trying to clean and your pressure washer itself. With the right detergent and a little bit of know-how, you can easily clean even the most stubborn of surfaces using your pressure washer!


A pressure washer is a powerful cleaning tool and, when used with the right detergent, can be incredibly effective at removing dirt, grease, and mold from any surface. So, don’t be afraid to experiment with different detergents to find the one that works best for you.

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