How to use a pressure washer

The first step is selecting a model that matches the type of cleaning you’ll be doing. A compact model like the Ryobi 2030 PSI High Pressure Washer is perfect for medium-intensity jobs like freshening up paths, decks, outdoor furniture or vehicles. It gives you plenty of cleaning power without being too heavy or difficult to move around. A 2750 PSI model is great if you’ve got bigger or tougher jobs, such as heavily soiled driveways, brickwork, or mouldy outdoor surfaces, and a more powerful high pressure washer model will save you time and effort. The Ryobi 2100W 2750PSI Pressure Washer even comes with a built-in detergent tank and soap nozzle, which means you can add cleaning solution directly into the spray for extra grunt. Choosing the right machine at the start will make the job smoother and prevent you from overworking your washer.

Choose a flat, stable surface close to both a water source and a power outlet, making sure the pressure washer will stay steady while in use. Place it where the hoses can reach the area you’re cleaning without stretching or twisting, and avoid uneven ground or steps where it might wobble or tip. Once in position, attach your garden hose to the water inlet and the high-pressure hose to the outlet, checking that both connections are secure so they won’t leak when the water is turned on.

Select the spray nozzle best suited for the job and connect it to the trigger gun - most washers use quick-connect fittings that click easily into place. Check all fittings are tight and leak-free, then turn on the tap to allow water into the machine.

This step is often overlooked but is important for keeping your machine in good working order.

Before switching the unit on, squeeze the trigger for 20–30 seconds to let a steady stream of water flow through. This flushes out any air in the system and ensures the pump is primed with water. Running a pump dry can damage the washer, so this step helps extend the life of your unit.

Switch the machine on and hold the spray nozzle about 30 cm from the surface you’re cleaning. Work in smooth, overlapping strokes - just like mowing a lawn - to prevent streaks or missed patches.

Use the turbo nozzle for stubborn dirt, moss or mould on hard surfaces. It delivers extra power, but keep it moving and maintain a safe distance on timber to avoid damage.

Switch to a 15° fan spray for gentler cleaning. The wider spray pattern is ideal for weatherboards, painted finishes and exterior walls.

Attach a foam cannon to mix soap or car wash solution into the spray. This works well for cars, bikes and outdoor furniture, and also for pre-soaking dirty surfaces before rinsing.

For large, flat areas, a round surface cleaner keeps the spray contained and covers more ground quickly. It reduces splashback and makes jobs like patios and driveways much faster to complete.

When you’ve finished cleaning, switch off the machine and turn off the tap, then disconnect the hoses and squeeze the trigger once more to release any leftover pressure. Allow the washer to cool if it’s been running for a long session, then coil the hoses neatly and store the unit in a dry, sheltered place with all attachments kept together. Proper pack-up will protect your pressure washer and make your next job easier to start.

Learn how to clean windows or how to clean carpet.