6 months agoSpecifically designed for heavy-duty cleaning or paint stripping, pressure washers use less water when compared to a garden hose. The following information will assist you to interpret GPM and PSI ratings to help you discover how to use a pressure washer ideal for the project.

How Can Pressure Washers Work?

Pressure washers use pumps, powered by gas engines or electric motors, to amplify the liquid pressure, providing the power necessary for various cleaning applications.

Pressure washer pumps have two connection points for low and high pressure. The reduced pressure connection (IN) is threaded to accept a standard garden hose. The top pressure connection (OUT) accepts a top pressure hose (typically M22 threaded or 3/8-inch QC) that connects to a hand-held wand.

The pump is an essential component on the pressure washer.

Axial pumps, best useful for small jobs in the house, are really simple to use and require little maintenance.

Triplex pumps, ideal for daily or frequent use, need to be maintained but could be repaired to make sure numerous years of quality performance.

Interchangeable nozzles control the wand’s spray pattern. Most pressure washers include wands designed to use a ¼-inch quick connect system.

Tip: It’s recommended that you use a pump protector after every use. Pump protector will lubricate your pump’s seals which will help prevent the buildup of corrosive minerals and ice.

Cleaning Power: PSI and GPM

Cleaning power is measured by PSI (pounds per square inch) and GPM (gallons each minute) rating.

Tip: To discover the cleaning power of a pressure washer, multiply the PSI x GPM. The resulting number will allow you to compare models allowing you to choose one that can be up to the task.

PSI: Pounds per square inch measures pressure, or cleaning force, water created via the pressure washer. Use the PSI rating to assist you to see how powerful the liquid stream will probably be.

GPM: Gallons every minute measures the quantity of water delivered through the pressure washer. If you loved this article and you would certainly like to receive additional information pertaining to The Best Pressure Washer kindly check out our own web page. This number will let you figure out how fast the stress washer will clean, and the way effectively it can rinse away debris.

1,300 – 1,800 PSI: Nearly 1.5 GPM – Consumer motor unit models:

Residential electric grade


Perfect for infrequent jobs

2,000-3,000 PSI: Approximately 2.8 GPM – Consumer gas engine models:

Use for car washing, shutter cleaning, spot cleaning, grills, lawn furniture, light mildew/mold removal

Residential gas grade


Great for common jobs

Use for deck and pavement cleaning, sidewalks, siding, tougher stains

3,000-4,000 PSI: Nearly 4. GPM – Professional gas engine models:

Professional grade

Perfect for tough, heavy jobs

Use for industrial cleaning, concrete, pavement, siding, paint stripping, graffiti removal, stubborn stains, mold and mildew removal

Buying Considerations

Look at the flow within your water supply and double-check the amps instructed to power the model you plan to get.

Well water can be incompatible generally washers as a result of low water flow.

Choose a pressure washer that features a ground fault interrupter built into the cord. (Note: Some require a 20-amp circuit.)

Determine when the brushes, nozzles and tips match the sorts of projects you plan to tackle. There are several attachments which might be created for specific projects, including rotating brushes and extension wands for high cleaning.

In the event your cleaning needs are definitely more demanding, think about unit that also includes electronic fuel injection, or EFI. This feature provides pressure washer 50 percent easier starting and fuel economy.

Pressure washers together with the PWMA logo indicate that they have been certified with the Pressure Washer Manufacturers’ Association.1 year ago