Karcher HD 9/25 G Classic Professional Petrol Pressure Washer 250 Bar

The Karcher HD 9/25 G Classic is a professional petrol pressure washer. It runs on its own engine, so it needs no mains socket. That makes it a match for building sites, farms and yards. It is the most powerful machine in the Karcher Classic petrol range.

Power first. You get 250 bar working pressure and up to 300 bar maximum. Flow is 900 litres per hour. It shifts caked mud, concrete splash and farm muck without a fight. The pump is a crankshaft design with ceramic pistons.

The engine is a G390FA petrol unit that meets EU Stage V emissions rules. It sits in a tubular steel frame that takes knocks. The wheels are puncture-proof, so rough ground is no problem. The unit weighs 56.8kg and measures 878 x 538 x 702mm. It still fits in a small vehicle. A hose hook and accessory storage keep the kit tidy. One point to know: it needs a water feed of at least 1 bar. It cannot draw from a tank.

Why choose it? You get mains-free heavy duty cleaning in a compact frame. The box holds a 10 metre high pressure hose, a standard trigger gun, a power nozzle and a water filter. Thermo and safety valves protect the machine. It suits contractors and farm users who need steady power far from a socket.

Working pressure is how hard the water hits the surface. Flow is how much water arrives each hour. This machine gives 250 bar and 900 litres per hour, so it strips dirt and flushes it away fast. The crankshaft pump with ceramic pistons is built for hard daily use. The petrol engine drives the pump directly. That frees you from a mains lead. Petrol engines need more upkeep than electric motors. Check the oil before each start and follow the manual.

Read the manual before the first start. Check engine oil first, as running dry can seize a four stroke engine. Use the machine outdoors only, as petrol engines give off exhaust fumes. Never aim the jet at people or animals. Keep the water feed at 1 bar or more. Let the engine cool before refuelling. Wear eye protection and sturdy boots.