1000-2000 PSI
Good for light cleaning jobs or for jobs where the surface to be cleaned is soft and easily damaged. This pressure range is good for cleaning decks and siding and for light-duty auto cleaning.
Mid-Range Power: 2,000 to 3,200 PSI
The most versatile category of pressure washers, those ranging from 2,000 to 3,200 PSI effectively clean cars (including the most well-used off-road vehicles), home siding, fences, boats and grimy garage floors. Those closer to 3,200 PSI work effectively on tough stains, too.
Light-duty pressure washers are rated at 2,000 PSI or less and are suitable for cleaning automobiles, motorcycles, boats, bicycles and all-purpose cleaning. Medium-duty pressure washers produce 2,000 to 3,000 PSI and can be used to remove grease and grim from concrete, sidewalks, decks and siding.
Green nozzle – 25 degrees
You can also safely clean wood and siding if you keep the nozzle farther away. Use the green nozzle for all cleaning chores, including gutters, aluminum trim, sidewalks and patios.
The power of pressure washing can result in holes in your siding, breaking off vinyl panels, and more. When you're using a pressure washer, you're likely shooting water up toward the top of your house.
Spray Your Siding Clean
Be careful not to spray directly at eaves, vents or light fixtures. High water pressure can knock out loose windowpanes or break them. Also, keep the angle of the wand pointing down so you don't spray up under the laps of horizontal siding.
2,000 - 2,900 PSI: This is a moderate strength unit used heavier residential tasks. These units are commonly sold as either electric or gas pressure washers. 3,000 - 6,900 PSI: These high pressure models are what professional pressure washers and contractors usually use.
Although many electric pressure washers produce a pressure of about 1900 psi, you should only use a water pressure of 1500 psi or lower on your car. You'll need to look for a low-pressure machine that's a bit less aggressive than the standard.
There's no doubt that electric pressure washers from 1,300 to 2,300 psi can wash a concrete driveway, but it'll take longer. If you have a large driveway with lots of stains, you'll want more power to do the job faster. I chose the 3,100-psi gas pressure washer and cut the job time in half.
If you have an average 2,000 sq ft house, you can expect pressure washing it to take between two and four hours. A smaller home will go quicker, and a larger one will take longer.
To clean a deck, some homeowners choose a washer with a pressure range of 1,300 to 2,400 psi, the same as washing a car. HGTV recommends working with the lowest pressure that cleans your deck materials gently: about 500 to 600 psi for soft woods like cedar or pine, and up to 1200 to 1500 psi for pressure-treated wood.
Most homes should be power washed a minimum of once a year. Power Washing your siding will actually extend the life of it so it won't need repairs and you won't need to replace it as often. It also makes your home look as good as new when it's tidy and clean on the exterior.
In general, houses should be power washed at least once a year any time between March and November. As it gets later in a calendar year, you'll want to make sure your home is taken care of before the freezing temperatures and winter weather arrive.
There are basically three methods for cleaning vinyl siding: using a soft cloth or soft-bristled brush; using a garden hose; or using a pressure washer.
Concrete cleaning calls for powerful pressure washers featuring high pressure levels of 3000 PSI. However, if you will be using the power cleaner to maintain a range of surfaces in addition to concrete, choose one with adjustable pressure levels and set it to about 3000 PSI when you need to clean concrete.
Selecting a pressure washer with a range of 2,000 psi to 4,000 psi will give you the most effective power for removing peeling paint. With pressure washers, as with all power equipment, always wear protective goggles and closed-toe shoes.
What psi should I use to pressure wash my car? For most cars, a psi between 1200 and 2200 is recommended. This range provides enough cleaning power to remove dirt and grime without damaging the car's paint or delicate surfaces.
Electric pressure washers are lighter, more nimble, and far quieter than their gas counterparts. And like all electric and battery-operated tools, they start instantly and are significantly better for the environment because they don't produce any emissions.
The main difference is that power washing uses highly pressurized steam to do the cleaning while pressure washing just uses unheated tap water, without the help of a heating element.
Higher GPM will help you get the job done faster. For most homeowners, identifying your ideal PSI (whether low or high) is a good start. Once you have the PSI you need, then look for higher GPM numbers to get better efficiency.
Pressure Washing and Vinyl Siding
The answer is: YES, pressure washing absolutely can damage vinyl siding if done incorrectly. We have seen countless homes and buildings that have damaged areas because someone without the proper training has tried to pressure wash their building.
After pressure washing your house, you have to wait for it to fully dry before you can paint it. This waiting time can be anywhere from 24 hours to 3 days.
Will Pressure Washing Remove Mold? Yes, pressure washing can remove mold from your exterior surfaces such as roofing, concrete and siding; however to effectively kill the mold, pressure washing should be combined with a bleach solution.