How to use a pressure washer: use & connect your high-pressure cleaner correctly

Want to know how to use a pressure washer and connect it to a water source correctly? Here’s the best way to do it.

A woman exiting a garage with a STIHL RE 130 PLUS high-pressure cleaner that she is about to use

Overview: How to use a pressure washer

  • High-pressure cleaners are suitable for a wide range of cleaning purposes.

  • Suitable accessories ensure optimum results.

  • Use a water filter to ensure the longevity of the high-pressure cleaner.

  • Always use the high-pressure cleaner carefully; start with low pressure and only increase it if necessary.

A woman using the STIHL RE 130 PLUS high-pressure cleaner outside to clean garden furniture

How to use your pressure washer correctly: What can a high-pressure cleaner be used for?

A high-pressure cleaner is ideal for numerous cleaning tasks around the home and garden. Even stubborn dirt can be loosened and removed with high water pressure.

For example, if you want to clean your garden furniture or remedy the effects of weather on your house, a high-pressure cleaner is the go-to option. Of course, you can also use it to clean vehicles efficiently.

Did you know? If you use a pressure washer correctly, you can save a lot of water compared to a conventional garden hose. While a garden hose consumes around 3,500 litres of water per hour, the water consumption of a STIHL high-pressure cleaner averages 600 litres of water per hour.

A connected-up STIHL RE 130 PLUS high-pressure cleaner on a terrace, ready for use

Connecting a high-pressure cleaner correctly

Before starting work, you should connect up your high-pressure cleaner correctly. This process differs depending on the cleaning purpose and water source. In addition to fresh water from the tap, you can also use a garden pump or rainwater to supply your high-pressure cleaner.

Regardless of where you want to connect your high-pressure cleaner, it is important that it is safely secured in place. While connecting up the high-pressure cleaner, make sure that it cannot tip over while you work. Once the power tool is securely set up, connect it to the water source. 

In the following, we will show you how to use your high-pressure cleaner with different water sources.

How to use a pressure washer: Connecting the high-pressure cleaner to a normal tap

If you want to connect the high-pressure cleaner to a normal tap, you can use the high pressure attachment for a garden hose that is equipped with a backflow preventer. This legally required component prevents standing water in the high-pressure cleaner from being pushed back into the domestic water line. Then proceed as follows:

Choose your pressure washer

A person checking the connection of a STIHL RE 130 PLUS high-pressure cleaner

How to use a pressure washer: Connecting a high-pressure cleaner to a garden pump

Whether you have your own cistern or a water well, with a garden pump you can easily use water sources in your own garden. To connect the high-pressure cleaner to a garden pump, you need a garden hose and a water filter. The latter reliably filters suspended particles out of the water, protecting the high-pressure cleaner from contamination and damage.

First attach the water filter to the high-pressure cleaner or to the garden pump. Then connect the garden pump to the garden hose. Next, connect the high-pressure cleaner to the power supply. Before using the high-pressure cleaner, start the garden pump and flood the high-pressure system by actuating the spray gun. The high-pressure cleaner is now ready for use.

To operate the high-pressure cleaner with rainwater, you need a suitable suction kit. In addition, you should use a water filter to safeguard the service life of the high-pressure cleaner.

Before connecting the suction set to the high-pressure cleaner, first remove any hose coupling attached to the high-pressure cleaner. Then screw on the water filter.

Next, prepare the suction set for use. To do this, fully immerse it in the water butt so that it is completely flooded with water. Then cover the hose of the suction kit with your finger to keep the water in the hose while connecting the hose end to the high-pressure cleaner.

Before using the high-pressure cleaner, pull the hose far enough out of the rainwater source that the bottom end no longer touches the bottom. Ensure that the suction kit is drawing water from a depth of no more than one metre.

 A person mounting an attachment on a STIHL RE 130 PLUS high-pressure cleaner to use it

Starting your high-pressure cleaner correctly

After correctly connecting up the high-pressure cleaner, you can start working and use the pressure washer. Before starting, you should have already flooded the high-pressure system by actuating the spray gun with the power tool switched off. As soon as no more air comes out of the spray gun, you can use the high-pressure cleaner.

Now mount the correct attachment for the task at hand. For example, if you want to perform wet blasting, connect the STIHL wet blasting attachment to the high-pressure gun.

Soiled floor surfaces can be thoroughly cleaned with the surface cleaner, and sensitive facades are best treated with a rotating wash brush.

Once the appropriate attachment has been mounted and is ready for use, you can switch on the high-pressure cleaner and use it correctly.

Use high-pressure cleaners carefully 

Always proceed with caution when using a high-pressure cleaner.Start your work with a low pressure setting to carefully test the sensitivity of the material you want to clean.

Wooden garden furniture for example is significantly more delicate than metal furniture. You should proceed with particular caution if you wish to clean your bicycle with a high-pressure cleaner.

If you need higher cleaning performance for a specific task, you can gradually increase the pressure. Always keep an eye on the material. When using a high-pressure cleaner, you are using a powerful high-pressure jet that may damage delicate materials.

For the correct procedure for the attachment used, refer to the corresponding user manual. Familiarise yourself with all work steps in advance so that you can act confidently and safely at all times.