UNDER PRESSURE

When it comes to outdoor cleaning, pressure washers stand out as a highly efficient solution.

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They can remove layers of grime in a fraction of the time it would take with manual scrubbing and soapy water. Surfaces such as driveways, patios, cars, and even outdoor furniture can look almost new after a thorough wash. This impressive cleaning power comes from a focused jet of water that blasts away dirt. Instead of spending hours on your hands and knees, you can clean large areas swiftly and effectively.

However, the force that makes a pressure washer so valuable also requires careful handling. Without the right knowledge, you might damage surfaces, harm plants, or even injure yourself. Fortunately, learning how to choose the right machine and use it effectively isn't complicated. In this guide, we'll explore the essential features of pressure washers, the difference between various models, and techniques to help you get the best results. By the time you finish reading, you'll be ready to tackle everything from stained decking to muddy car wheels - safely, efficiently, and with confidence.

The basics: How pressure washers work

A pressure washer relies on a motor (electric or petrol) that powers a water pump. The pump takes in water from a hose or container and speeds it up, shooting it out through a nozzle at high velocity. The intensity of the spray is measured in pounds per square inch (PSI) or, sometimes, bars. You might also see a measure called "litres per minute" or "gallons per minute," which tells you the flow rate of the water. A balance of both pressure and flow rate determines how quickly and effectively the machine will clean.

Pressure (PSI or bar)

• Refers to how forceful the water jets out of the nozzle.

• Higher pressure helps blast off tough grime but can also damage delicate materials if not used carefully.

Flow rate (litres per minute or gallons per minute)

• Indicates the amount of water the machine can expel in a set period.