Kärcher K 4 Power Control Home Pressure Washer, Pressure: max 130 bar, Flow Rate: 420 l/h, Area: 30 m²/h, Water Filter, Weight: 11.5 kg, High-Pressure Gun, Dirt Blaster, Spray Lance, Home Kit

Totally love this Karcher - so much more powerful than my old K2 I was using for 10+ years and now it fell apart. I was trying to get the K5 but it was £200 extra and I managed to get this on really good deal and I cannot be happier. The patio cleaner made a huge difference and is so much easier to use than the K2 one.All in all, 100% happy and definitely recommend to all.

The media could not be loaded. Spent a lot of time looking at different jet sprays but eventually went for this one, and after the first use I know I went for the right machine. After using the the Karcher K4 I found the results to be amazing to the stage that I had forgotten how the patio slabs had looked after I had them laid.ProsThe parts are easy to put together, and you are up and running quickly. The water line also has enough length that you don't have to keep moving all the parts around too much.The power this machine has was more than enough to complete jobs around the house, including washing my car.There is an app that you can download which shows you the best settings to use on different surfaces, although this is not necessary if you don't want the app on your phone.There are many accessories that can be added to the machine to enable you to do even more.The Stone and Paving Cleaner that was included helped with the clean, and as my wife commented left the are smelling fresh and clean, so mush so I have ordered extra bottles for next time I use it.ConsThe only issue I've had is that there is a yellow part from the round surface cleaner that gets stuck in the the handle part when swapping tools around and if you don't notice you can't change the different attachments around unless you remove it which can be fiddly and frustrating until you workout what has actually happened.Overall I would definitely recommend the Karcher K4 for getting them cleaning jobs around the house done, and I don't believe I would need a bigger machine to get this done so really happy with what I have.

I was surprised that I had to do so much construction of the washer before I could use it. I think that at the price the manufacturer could have done more and attached the various panels and wheels only leaving attaching the the water supply cable and the lances to the customer. I found this particularly annoying as the instructions for assembly are abysmal: tiny little diagrams that are difficult to see. The information on the App is better but I was grateful to a help chap on uTube who demonstrates clearly how to assemble the machine.I found attaching the lances very difficult at first until I discovered that before twisting the two parts together one has to press the end firmly down on the ground before the parts will engage.Glad to say that after all this the performance of the washer is excellent. I found the best approach is to use the patio cleaner first to shift the dirt. It does use a lot of water. Then I used the variable lance to move most of the debris and dirt onto soil or a drain. THe variable lance does a pretty good job of cleaning when set to ‘Hard’ but doesn’t remove weeds, lichen or stubborn stains/dirt. You need to use the high powered lance. Be warned it kicks up any remaining mud or dirt. The first time I use it I was covered in spatters and had to wash my face and hair. Thereafter I dressed in full waterproof gear and wellingtons. Also be careful near windows as it throws spatters several feet in the air.The water supply hose to the spray heads is too stiff and remains in coils: it would be so much better if made with a more pliable material. It gets tangled repeatedly making gate unit awkward to move.Overall I’m pleased with washer but think it could be better with a few modifications.UPDATE 28 April 2023I mention above that the hose that links to the attachments is infuriating in the way it keeps coiling and tangling. I've found a way to reduce this by laying the hose flat and completely stretched and leaving it for a day or so. I guess that if done in hot weather it would be even more effective as I've found for plastic garden hoses. Even better if water is left in the hose as it will get hot in the sun and further soften the plastic in uncoiled state. Good luck!

Great for cleaning patio

This washer was very easy to assemble and the app leads you through it all step by step. I was up and running in less than 30 mins. I’mnot normally one for apps, but this one was actually really useful. It also provides step by step instructions for each type of cleaning and tells you which attachments and key strength to use.The machine is very easy to use and it’s simple to change attachments. I used the patio cleaner attachment which was fantastic and took off years of lichen, moss and dirt in seconds with no scrubbing needed. It really was so easy. My patio looks amazing. The specific patio attachment was well worth it, although just the normal jet would have also done the job it would have taken a long time to do the large area.Haven’t yet used the car attachment but looks very easy also and am sure it will also give great results.As previous reviews take care in worn areas, the pressure was so high it took out some (already damaged) grout between flagstones but I was expecting this and it’s no drama to repair, my patio still looks better.Seems solidly built and is easy to move. Whilst it’s heavy it’s not unmanageable. The wheels and telescopic handle are good features. Storage net is a little too small to hold the power cable but that’s the only negative I can find.Definitely worth the money

Upgraded from the K2 to the K4, and the difference is amazing! The extra power and features make cleaning so much faster and easier. Perfect for larger jobs like patios and driveways. Definitely worth it!