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Made in Germany for over 70 years, Kärcher pressure washers are ten times more searched-for than the next most popular brand. They range from the portable K2 Compact (reviewed below) to this big, heavy and very powerful K7, which must be regarded as the big daddy of domestic pressure washers – although it’s not necessarily the right choice for everyone. You can either buy the accessories separately, or you can buy a device that is already supplied with these tools. I use this pressure washer for big jobs,” says professional gardener Ljudmil Vasilev of Fantastic Gardeners. “They’re very powerful but also very bulky and heavy. I’d only recommend them for cleaning very large paved areas, like a car park. Electric models are perfectly good for everything else.” Basically, the more stubborn the dirt you have, the more water pressure you need. Also, the larger the area, the more comfortable the handling of the device should be. Here, the larger models are certainly more suitable than the small, entry-level models.
People who are only interested in cleaning off their garden furniture, garden tools, motorbikes, bicycles or rubbish bins are probably only going to need light-duty pressure washers that don’t even reach 1500 PSI (pressure: pounds per square inch).Yes. Except for industrial use, these days all the best power washers – as they are sometimes known – are electric. Many are cordless, but they are not as powerful as plug-in electric models and the runtime can be limited. Therefore, we have compiled a table for you where you can find our recommendations for the delivery rate in relation to the pressure. Here, the more delivery capacity available, the better it is. Recommended combinations bar / l/h Pressure (bar) A conventional garden hose usually has a pressure of 4 bar and uses about 3,500 litres of water per hour. A mid-range high-pressure cleaner, on the other hand, which has 145 bar, only uses about 500 litres per hour. Connect the app, and you can tell the K5 what you’re trying to clean. It will then set the required pressure and tell you how to adjust the lance for every stage, so that, as you clean the car or power-wash the driveway, you’re using the right spray pattern and setting for every step. Buy the Home version and Kärcher also bundles in the T5 Surface cleaner for a thorough clean of any hard surfaces in your garden. You pay a lot for the smart features, and we’re not sure that using the app to control the lance is really all that convenient. Still, if you want the ultimate in high-tech pressure washers, nothing else comes close.
Some pressure washers can’t take detergent, although Ljudmil says that’s not a big deal. “You can use detergent, but I never do. The chemicals could be bad for pets, flowers and the environment and, with a good pressure washer, cold water alone is enough to do a great job.” What safety precautions should you take when using pressure washers? Since not all manufacturers state the working pressure and this is often only stated for higher-quality pressure washers, we have decided to show only the maximum pressure in our tables. Otherwise, the professional devices would perform superficially worse in comparison to the cheaper models. Pressure regulation, the most important feature in a powerful pressure washer Store your power washer in a dry place that is well ventilated. In the winter months you may want to bring it inside or store it somewhere that is heated to ensure the pump does not freeze and become damaged with any water left inside. Should I buy a pressure washer? Another advantage of cordless pressure washers is that their batteries are often interchangeable with other power tools you might already have, such as cordless drills. In our tests, we generally found these cordless models more convenient, especially when cleaning cars or working at a distance from the house. What is the best PSI for a pressure washer?You’ll have gathered by now that I don’t like all the messing about with plugs, wires, taps and hoses. I can’t be the only one and that’s why Bosch’s cordless, genuinely portable unit has its own niche. Like the Core 130, the Core 140 takes a fair bit of time and effort to assemble, but it has a couple of extras that make it easier to use and store, including a longer high-pressure hose pipe and a reel at the front to keep it tidy, along with an even more robust frame, sprayer lance and handle. With a bit more welly than the budget models, but a lower price tag than the premium washers, this might be the perfect mid-range option. You may be looking for a pressure washer for a light duty cleaning task now, but it’s worth thinking about what other jobs you might need it for in future. If you buy one with a high-water pressure rate that can be varied, you’ll be able to use it for any light, medium and heavy duty tasks in future.
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