Pressure washing is an efficient way to clean tough surfaces, but it's essential to select the right pressure for the job. The amount of pressure needed depends on the task at hand, and it's important to be aware of the potential damage that can be caused by using too much pressure. In this article, we'll discuss how to choose the right pressure for pressure washing and provide some tips on how to use a pressure washer safely. The heaviest tasks, such as removing paint or graffiti, require a pressure of 2,800 psi or more and a flow rate of 3 to 4 gallons per minute (more than 8,400 ECU). Commercial grade pressure washers, designed for regular use and built and powered accordingly, start at 3,100 psi.
Pressure washers, whether powered by electric or gasoline motors, use a pump that pressurizes water in the garden hose to 1,000 pounds or more, and then expels it through a spray rod. The higher the pressure (measured in pounds per square inch psi), the more difficult the cleaning jobs they can do. Both types require a constant, uninterrupted supply of water (in gallons per minute). For occasional use, most homeowners will find that a washing machine with a pressure range of 1,300 to 2,400 psi works best. Depending on the task at hand, you should look for a pressure washer that has a range of between 1300 and 2300 PSI. This pressure range should be sufficient to eliminate common problems, such as dirt, oil and stains.
When pressure washing your home, you should consider the condition of the property and the materials your house is made of. Cars, vans and trucks are very sensitive and may have a tendency to dent in pressure washers if the correct pressure is not used. If you have a house in good condition and it is made of brick, you should be very careful when washing the mortar between the bricks, for this purpose it is recommended to use a pressure of between 1600 and 2000 PSI. If you want to wash your car with a heavy appliance, be sure to keep the pressure a little further away. A specialized pressure washer can have a pressure of more than 6000 PSI, but it requires very careful use, as these machines are used to remove products such as paint, embedded oil and embedded grease.
Lowes created an excellent graphic that shows the recommended pressure wash pressures for various cleaning jobs. When thinking about buying a pressure washer, one of the determining factors should be the power at which it can operate. Be careful when cleaning roads as well; mortar between road stones can be damaged when using too much pressure. Pressure washers allow you to do just that: they combine high pressure with high volume to clean tough surfaces in record time. The first thing you should consider when buying a pressure washer is buying one with enough power for your needs. You should buy one with enough power so that you don't need to upgrade later on.
If you're never going to exceed 2500 PSI for your projects, you can save some money if you choose a 2600 PSI pressure washer instead of a 4000 PSI one. It's important to remember that while pressure washing can be an effective way to clean tough surfaces quickly and easily, it's important to choose the right amount of power for each job. Too much power can cause damage to surfaces or even push water into porous layers below them. Be sure to read up on how much power is needed for each job before starting any project.