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How to Select the Perfect Pressure Washer: GPM vs PSI

by Rita

It’s important to know the difference between GPM and PSI when selecting a pressure washer. GPM (Gallons per Minute) is a measure of how much water the machine can output. PSI (Pounds per Square Inch) is a measure of how much pressure the machine can generate.

When choosing a pressure washer, you need to consider the project you’re going to use it for. If you’re just going to be cleaning your car, then a lower GPM and PSI will suffice. However, if you’re going to be cleaning something tougher, like a driveway or deck, then you’ll need a machine with more power.

To figure out what kind of pressure washer you need, start by considering the project you’ll use it for. Then, compare the GPM and PSI of different models to find the one that’s right for you. With a little bit of research, you can easily find the perfect pressure washer for your needs.


When it comes to pressure washers, two of the most important factors to consider are GPM (gallons per minute) and PSI (pounds per square inch). But what exactly do these terms mean? And how do you know which one is more important for your needs? Let’s take a closer look.

The pressure washer gpm refers to the amount of water that pressure washer can output in a minute. A higher GPM rating means that more water will be pushed through the machine in a shorter amount of time, which is ideal for cleaning larger areas quickly. PSI, on the other hand, refers to the amount of pressure that the machine can generate. A higher PSI rating means that the machine will be able to remove tougher stains and dirt more effectively.

So, which one is more important? It really depends on your needs. If you’re going to be using the pressure washer for light-duty tasks, like cleaning your car or washing your deck, then a machine with a lower GPM and PSI rating will be just fine. However, if you need to tackle tougher jobs, like cleaning graffiti off of concrete or stripping paint from a wooden fence, then you’ll need a machine with a higher GPM and PSI rating.

To figure out the perfect pressure washer for your needs, it’s important to consider what you’ll be using it for and how often you’ll be using it. With that information in hand, you can start narrowing down your options and choosing the perfect machine for the job.

Other Important Factors to Consider

In addition to GPM and PSI, there are a few other factors that you’ll want to consider before purchasing a pressure washer. Here are a few things to keep in mind:

The type of pump:

There are two main types of pumps used in pressure washers electric and gas. Electric pumps are more commom in lower-powered machines, while gas pumps are more common in higher-powered models.

The type of nozzle:

Pressure washers come with different types of nozzles, each of which is designed for a specific purpose. For example, some nozzles are designed for general cleaning, while others are better suited for tougher jobs like stripping paint or removing graffiti.

The price:

Pressure washers can range in price from around $100 to $1,000 or more. It’s important to find a machine that fits your budget and your needs. With a little bit of research, you should be able to find a great machine at a price that’s right for you.


Choosing the perfect pressure washer can seem like a daunting task, but it doesn’t have to be. By considering your needs and doing a bit of research, you can easily find the right machine for the job. With the right pressure washer, you’ll be able to tackle any cleaning project with

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