Kärcher K 4 Power Control high pressure washer: Intelligent app support – the right solution for heavier soiling
1 CLEVER 2 SUSTAINABLE 3 EFFICIENT 4 COMFORTABLE
Kärcher high-pressure washers: performance classes in comparison
 K 4 Power Control |  K 7 Smart Control |  K 5 Power Control |  K 3 Power Control |  K 2 Power Control | |
| Pressure | max. 20 – 130 bar | max. 20 – 180 bar | max. 20 – 145 bar | max. 20 – 120 bar | max. 20 – 110 bar |
| Surface performance | 30 m²/h | 60 m²/h | 40 m²/h | 25 m²/h | 20 m²/h |
| Flow rate | max. 420 l/h | max. 550 l/h | max. 500 l/h | max. 380 l/h | max. 360 l/h |
| Max. Inlet temperature | max. 40 °C | max. 60 °C | max. 40 °C | max. 40 °C | max. 40 °C |
| Weight without accessories | 11,5 kg | 17,6 kg | 13 kg | 4,4 kg | 4 kg |
| Dimensions (L x W x H) | 402 x 306 x 588 mm | 458 x 330 x 666 mm | 402 x 306 x 588 mm | 297 x 280 x 677 mm | 246 x 280 x 586 mm |
| High-pressure hose length | 8 m | 10 m | 10 m | 7 m | 5 m |
| Water suction | ✔ | ✔ | ✔ | ✔ | ✔ |
| Connection capacity | 1,8 kW | 3,0 kW | 2,1 kW | 1,6 kW | 1,4 kW |
| Weight: | 11.5 kg |
| Dimensions: | 40.2 x 30.6 x 58.8 cm; 11.48 Kilograms |
| Model: | 1.324-032.0 |
| Colour: | Yellow |
| Manufacture: | Kärcher |
| Colour: | Yellow |
The only disadvantage of the pressure washer is that the hose tangles. I’m planning to buy the anti twist adapter (20) or a new hose (50). Also, the hose is too short, so 10 or 15 m would be better.
If you don’t have experience with a pressure washers, here is what I have cleaned with it so far: car, bins, shed, patio, path, concrete, storage boxes, parasol, stripped old paint.
For car, I got a separate foam lance.
Overall, the performance is great – I wanted K4, as it has water cooled engine – you can use it longer.
I found this very powerful compared with previous electric pressure washers that i’ve used. It does a really good job on everything I’ve tried it on, ranging from decking, to walls to cleaning the path and patio using the T5 patio cleaner. For non commercial use I doubt many will need anything more powerful than this.
What can I say for this MIRACLE clean car status tiles I can used it for everything
I’ve seen a few reviews on here with regard putting together the Karcher Power washer and how difficult it was. I’m no DIY expert but after downloading the app it couldn’t have been easier. Took me no more than 20 minutes.
* great piece of kit, super powerful with lots of accessories (see the before and after pictures of my patio!)
* patio cleaner is a real highlight, very impressed with how effective this is
* Hose reel is nice and long, as it the plug to turn power on
* The app is a real plus, can be difficult to use initially, but once you get your head around it, it makes cleaning your home/car much easier and helps produce great results
Cons:
* hose is very stiff
* setting up the machine can be difficult, use the app instead of the booklet provided in the box!
* had a lot of trouble getting the hose into the nozzle at the start, okay once I got going but really had to fight it
* spray gun absolutely eats through the detergent – I’d recommend buying another brand, much better options out there!
Compared to my old Bosch this Karcher beats it in every respect, apart from the hose which is a pain, it’s constantly coiling itself up.
I have had three Karchers over many years and i like them because they are reliable
The only gripe i have is the pressure hose which is a real pain and it doesnt have to be.
Just go on line and look for recommended upgrades. Its well worth th emoney to get a longer and more flexible hose.
Ive looked at other pressure washer but never felt the need to change
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 2023
I 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!
It’s OK does the job but the hose from the k4 to the Gun/Handle is a pain its not flexible loops over and try and put it in back and stay on the uni
Only bug bear is the hose is crap and kinks a lot.you would of thought that karcher by now would of supplied a much better hose
Pull up handle is a bit flimsy but good enough.
Powerful with a selection of heads. Tried it with the rotator on an old garden chair as an experiment. Tore the fabric.
Quite a bit of assembly required. Straightforward though.
USE THE APP FOR ASSEMBLY much clearer. The instruction book is next to useless and the PDF is just the instruction book.
Pipe is stiff and inflexible. It would be better if rubber and flexible.
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’m
not 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
After my older model of Karcher packed in, I tried to be savvy and went for slightly cheaper Titan pressure washer. After assembly and trial for 5 minutes, I took it apart and off it went as it didn’t produce even a half pressure as my old Karcher ( in description the titan supposed to be 25% more powerful). I paid a little more for Karcher and enjoy every wash with it.
The moral of this story: stick with good that you know.
Easy to put together powerful and does what it’s supposed to do
Looks great, very compact. Not as powerful ad the old k4, mine is over 5 year old and still more power than this, it’s supposed to be the same bar.
As for rest of the accessories and Krcher shampoos I will not be using them on my car or patio as I don’t want to damage my paintwork or my brick work with something that doesn’t tell you what it contains. I just don’t want to run the risk.
I will use them for bicycles and scooters and outdoor toys and areas that’s not visible all year round.
As for power it’s very powerful and does the job no chemicals needed, makes my k2 look like it’s been used daily for 20 years it’s that powerful. 130 bar is enough to clean a patio and car without damaging it set to the right setting.
Used it round a development of flats and given it a thorough work out…and it proved well up to the job of pressure washing the pavements and walls. Don’t bother to read the instructions that come with it…just scan the QR code and download the app. The written instructions make an easy assembly task appear complicated…the app clearly shows what to do and if it’s taken you more than 10 mins you’re doing it wrong. If you want to use the detergent with the pressure washer, then don’t forget to take off the grey cap on the bottle…it then sits freely upright on the unit…and the detergent will be drawn through when selecting the lowest setting on the wand…
Otherwise, it’s transformed car washing and made the garden path look like new; just be very careful about which pressure / attachment you’ve chosen for what’s about to get blasted… have ruined some garden furniture with the strongest attachment which is really for things like stone and brick.
I would recommend an angled attachment (I got the VP 180 S) for car underbody cleaning.
I wouldn’t recommend the Karcher snow foam lance, there are plenty of better products on the market designed to fit a Karcher which have brass fittings and deliver better results.
Easy to use and bought mine on prime day so had it a lot cheape
Just don’t leak like the last one please and I’ll say nice things about you.
Liked the longer hose with it compared to the previous K4. I don’t like the feed through of the hose as it tends to kink at the rear.
Pressure washer its self is good but paid extra for the foam Lance which is useless for washing car as you can’t change the pressure had to buy another one from Halfords
I had a smaller one which broke so as I felt I couldnt live without one I opted for the K4. Fantastic machine. Now I spend my time looking for things to clean.
This is a great product that cleans well.
My only issues is that the hose isn’t very flexible.
I like it though and it does its job well
The K4 is highly recommended, far better than my last jet wash. Powerful and easy to use.
Admittedly, this is the 2nd Karcher K4 I’ve had, as the first one gave up after 2 years at the hose support clip on the back. The first models were made with a plastic elbow on the back, and this is where the leak failed.
On the newer models (such as this one) I’m pleased to say that this poor design flaw has now been replaced with a metal elbow.
The newer design also has an updated version of the gun, and a longer hose (which complaints were made about on the previous models)
I’ve since used this one on both the car, and the patio, which is fantastic and easy to use.
One tip for car users would be to replace the bottle with a better one. If I’m able to recommend one on this, it would be to look for Autobrite Snow Foam Lance, which has variable controls (and no. I don’t work for Autobrite, or get any money for recommendations)
Definitely a good buy in all ways, and would highly recommend this
Bought the K4 pressure washer to replace an old and worn out Black and Decker one, and so glad I did. It did the job of scrubbing my concrete driveway 100% better than the B&D.
I did have a minor problem with one of the parts, however I contacted Karcher via email with a couple of photos attached and within 7 days a brand new part was delivered FOC, no argument.
What a quality product and what a quality company to deal with.
Other companies should take note of how to deal with customers.
I would give this 4.5 stars if I could as it’s almost perfect, but isn’t. If it were easier to assemble (or even came fully put together) and if the high pressure hose were easier to wind up and store, then it would be a straight 5. But while it works brilliantly, removing dirt from our patios with ease, this lack of attention to storage is irritating. The hose has a mind of its own and resists being rolled up neatly, leaving sprawling lengths of hose all around the place when not in use. When in use, though, it is a joy and I would strongly recommend it for larger household tasks.
Wanted a pressure washer for some time and went for this one as it’s compact and powerful at a decent price, so would recommend.
Belter typical Karcher..
Spot on
Good power.
Sturdy unit
Easy to store
All the hoses tend to come out the one way
I’ve tripped over it a few times but that’s probably me
Little bit annoyed by the listing saying minor cosmetic damage, but when I opened it, the casing had huge cracks, but the unit worked fine anyway, so can’t be bothered going through the return process, but the listing should be more accurate.
Bought this to clean my garden patio, driveway, fences, car and also bird feeding station/feeders. It works brilliantly well, I’ve attached an image of a patio which had been under a decking for maybe 15years. It had a thick amount of dirt and grime build up on it for all the time being under the decking, and this machine completely cleaned it all away.
It comes with the base unit, a hose for the jet, one gun handle, and 2 Lances (one being the powerful one, and the 2nd being a gentle variable one).
The variable Lance I didn’t have much luck with, I suppose it’s what you’d use on your car but I haven’t attempted that yet. The variable Lance isn’t very good at cleaning away dirt from patio, or even wood, which it’s advertised for. I ended up just using the dirt blaster Lance on everything, and it absolutely destroys any grime and dirt, but don’t use this one on delicate wood or your car, as it is too powerful.
Used it to clean away all moss and bird poo that had accumulated on my bird feeders, handled this task like a hot knife through butter. Usually takes me about 1 to 2hours to completely wash the bird feeding station by hand, with this I done it in about 10minutes.
Overall happy with this purchase, paid about 160 from Amazon Warehouse, despite some cosmetic damage, it works fine and does everything I need it to do and exceeds at this.
I bought this item from the Amazon Warehouse, so it was an item returned by someone and refurbished by Amazon, sold at lower price.
Little bit annoyed by the listing saying minor cosmetic damage, but when I opened it, the casing had huge cracks, but the unit worked fine anyway, so can’t be bothered going through the return process, but the listing should be more accurate.
Bought this to clean my garden patio, driveway, fences, car and also bird feeding station/feeders. It works brilliantly well, I’ve attached an image of a patio which had been under a decking for maybe 15years. It had a thick amount of dirt and grime build up on it for all the time being under the decking, and this machine completely cleaned it all away.
It comes with the base unit, a hose for the jet, one gun handle, and 2 Lances (one being the powerful one, and the 2nd being a gentle variable one).
The variable Lance I didn’t have much luck with, I suppose it’s what you’d use on your car but I haven’t attempted that yet. The variable Lance isn’t very good at cleaning away dirt from patio, or even wood, which it’s advertised for. I ended up just using the dirt blaster Lance on everything, and it absolutely destroys any grime and dirt, but don’t use this one on delicate wood or your car, as it is too powerful.
Used it to clean away all moss and bird poo that had accumulated on my bird feeders, handled this task like a hot knife through butter. Usually takes me about 1 to 2hours to completely wash the bird feeding station by hand, with this I done it in about 10minutes.
Overall happy with this purchase, paid about 160 from Amazon Warehouse, despite some cosmetic damage, it works fine and does everything I need it to do and exceeds at this.
Once assembled, a very effective piece of kit. Surprised at how poor the instructions were, based on previous experience with Karcher products. Quite intuitive assembly, but admit to a quick youtube check to figure out some steps! On first use, the hose between the unit and lance needed some work to unravel and it wanted to remain in loops for some time. The adjustable lance display is useful. Cleaning the car is a joy and the maximum setting for paths and patios is very effective. This is the third Karcher jet spray I’ve used and very satisfied to date.
The patio cleaner isn’t great , but that depends if you removing heavy moss but its ok on lightly soiked slabs . The hose needs to be rubber and not the very stiff plastic . Its awkward to unwind and constantly wants to follow its natural coil when in use
This is my second Karcher power washer. Works well enough, I like the new pressure indicator on the handle. My only gripe is the pressure hose is like a coiled spring, my last one didn’t have this problem. At the end of the day it does the job.
Reason for 4* is the crappy hose, but that isn’t the end of the world, performed brilliantly while cleaning both company vehicles, so overall its a worthwhile purchase
Purchased this after my existing power washer died. Researched showed this to be the best in comparison to my much older previous one.
Once it arrived, attempted to put it together – took a little while after figuring out the not fantastic instructions, I used logistical guesswork(!)
Once up and running, works brilliantly, good to have both styles of lances, ever bit as good as the previous one, plus a good carry/drag handle to save physically lifting it.
Only thing that it does offer that I feel isn’t really much use is the option to download an app which suggests power modes to use depending on your requirements.
Good news for anyone thinking of purchasing this pressure washer, I received this on time with no damage to the box or anything inside of the box as seen with some of the other reviews ! The pressure washer works flawlessly and is ideal for the car detailing I intend to use it for. over all I have had a very good experience and would not hesitate to buy another one.
If you want a pressure washer it has to be Karcher. This is a nice powerful model. A-bit of a faff to assemble. At this price you really should not have to put it together yourself but worth the effo
I need a long hose from the outside tap to reach parts of my drive. The water pressure to the K4 is not the best but this doesn’t seem to affect the power of the jet and it works fine.
This is our second time we have bought this item. but they do last a long time with care. It is brilliant for doing the job it is for. cleans patios, pavers drive ways and everything brilliantly.
In general, the k4 is an excellent piece of kit for car cleaning and blasting dirt from composite decking, which is why I bought it after my k2 gave up. Sadly, the T-racer from the k2 doesn’t fit but I should be ok with the high power lance. The adjustable lance is a game changer for me as it’s so versatile for different applications. The hose, on the other hand is both brilliant and awful at the same time. The extra length is terrific but it kinks like a demented snake. Apparently the hoses on the k5 upwards are much better and I don’t know why these ‘better’ hoses aren’t provided with the more budget cleaners although they’re hardly budget in the first place. But for the hose, this cleaner would be perfect. Too bad
Works really well as a power washer, however, I purchased the soap bottle dispenser separately and tried using it to wash my car as directed. Absolutely rubbish, it used half of the soap bottle in 1 wash. Avoid purchasing the soap bottle as at 6 per bottle it’s not fit for purpose.
Excellent! Very powerful and easy to use, bit of assembly required but if you can build a basic Lego model you can build this!
Hose could do with another meter or two.
Don’t bother with a Karcher snow foam gun it’s not great, buy a dedicated valeters one for the same price.
Found the assembly instructions a bit difficult to follow but eventually used up all the screws provided. I bought this to replace my old Bosch pressure washer which died after 15 years of use. Hope this K4 lasts as long. It’s much quieter than my old washer and more powerful. Cleaned the terrace in much less time. Nice to have the adjustable Lance for car cleaning. Would definitely recommend.
Great product, went for this model as had an older version before, did find the instructions a little confusing and very small illustrations other than that Happy with product and price.
Used this several times now. No idea how to use the app with it. I just have it full beans all the time. Pretty sure the app is just a gimmick. But it does the job i expected it to do. Since ive had karchers all my life. My kids keep leaving water in them over winter, freezes and bursts the hose seals. So beware frost with these things.
I had my previous Karcher for a lot of years and as usual the model and relevant spares are unavailable. I asked for a recommendation from our local agent and he said the K4 would suit my needs. How right he was it’s excellent, my favourite feature is that it’s self contained and compact. It’s powerful and it’s really superb in my opinion.
Great purchase. Had to turn it on the lowest power to stop it removing all my glittery grout on my porcelain slabs as it is so powerful. Don’t listen to the negative reviews about assembling just read the instructions properly and it will take around 5 mins to do. First Karcher product I’ve bought really pleased
Absolutely amazing pressure washer. Cleans patio and bricks really well – very easy to assemble and use. The pressure gauge is useful and the attachments are all equally good for different tasks. Patio cleaner attachment is a personal favourite! Definitely recommend.
bought to replace an older K4 pressure washer, seems just as good, and a bit more thought to the design,
fits the old accessories , dont get the point of the App thats available or the fancy handle display which only works of the back pressure from adjusting the nozzle manually
but yes a good quality powerfull washer ideal for cleaning the car, patio or even the windows and gutters
only downside is having to attach all the parts
Fantastic jet wash – worth the extra money would highly recommend
The assembly instructions are poor for a top of range machine. When assembling I had two screws left over. Once it was up an running it worked great. It comes with a patio and car cleaning solution. Adding the cleaning solution it just a matter of plugging and unplugging it into the machine. My patio has not previously been cleaned for years and was stained with years of lichen and mud but it all shifted quickly. The car cleaning parts also seem to do a good job
It’s tricky to install and ours has a lump out if the wheel where someone tried before us. It’s also scuffed and dinted on the side. Again where some one tried and failed to install it. Would NOT recommend this seller! Not sending it back as the damage isn’t detrimental BUT very disappointed.
What can I say, excellent piece of kit with all the accessories you could possibly need to get the job done. The washer was easy to assemble it took me around 10 minutes.
I also recommend this kit as it comes with the additional hose reel on the back of the power washer and the other models without the car and home kit do not include this. It really helps when your finished to pack away nice and tidy with no cables sticking out.
So far I have only used the mud blaster attachment to clean the pavers out in my back garden and it did an excellent job of that, light work and they came up like new.
I cannot comment on the rest of the accessories as I have not yet used them all but so far so good. It’s a 10/10 from me offering great value for money.
Have used 4 times now and must admit i’m impressed with the ability of this Karcher, Excellent on cleaning paving and must recommend the patio cleaner (saves so much time) So far very pleased.
i bought this to help restore a large area of decking and some car cleaning , on both counts the washer worked very well and the tool for floors was particularly effective on the decking and also didn’t spray water
everywhere the job was completed in just over an hour with effective and pleasing results i expected it to take much longer. the time saved was worth assembling and dismantling before and after the job well pleased.
my other task was car cleaning particularly the alloy wheels again the job was done in record time and with exceptional results the machine will no doubt be used for allsorts of difficult to clean applications. and to maintin the car and decking in good conditio
Had one of these Karcher washers about 7 years ago which was good but unfortunately it started to leak so decided on a new on. Absolutely brilliant washed my block paving come up like new.
Just bought this pressure washer along with the telescopic Lance extension to clean my guttering and soffits. It all worked fine and did the job as expected, The washer I felt was expensive compared with alternatives at the same pressure level and if I had not needed the lance extension , which I could not find from an alternative make I would have bought a cheaper less well known model which I feel would have performed as well for most of the sort of things I will use it for. Karcher are the market leader and I feel price their stuff accordingly, but in practise probably doesn’t perform any better than cheaper alternatives.
Brilliant product – and a blessing when it comes to jet washing the patio and car – simply a great product. I have also purchased additional accessories
Delivery was really fast. I got to work with it straight away, tho there is an element of having to put it together which my son did for me as I’m not good at that kind of thing. Jet washed the patio and was amazed at the results, was previously thinking I’d have to reslab. Very easy to use and manoeuvre. Ideal.
Great product. Definitely worth paying a bit extra to get the scrubber attachment, cleans quickly and effortlessly without getting any splash back!
My husband and I tried putting this together and it took us over 2 hours! Instructions are in black and white pictures and we did not find it very easy to make out the pieces. 20/20 vision would have helped!! Only arrived yesterday and used it this morning on a very, very old patio set and some equally old patio slabs. Very pleased with the patio slabs. The patio set did not come up pristine but it had really ingrained dirt so did not expect it to come up as good as it did. Extremely pleased with this item.
This product was easy to assemble Randy excellent to use. The wheels make it easy to manoeuvre the long pressure tube makes it easy to reach what you need. You can vary the pressure from very harsh to light depending on the surface you are cleaning. No drawbacks yet I can see. I’m happy I bought this.
Will clean everything.
from stained patio to dirty car. Very good pressure. Happy with it. Don’t buy anything cheaper or higher than the K4 as this is the perfect pressure for all kinds. You will not be disappointed!
It arrived on time and was well packed it took me about half an hour to assemble I have not used it yet but so far so good I also agree with other reviewers that it could easily be delivered assembled and also I cant see why Karcher don’t include a detergent bottle? O” and the assembly instructions are a bit poor. But overall 9/10. Well I used it for the first time today drawing water from a water but and I was well pleased it performed perfectly washed off my mountain bike easy and cleaned the back yard concrete it did a perfect job. It could do with a reel for the cable and hose but not a big deal overall 9/10
Best buy ever
No one can beat amazon for this price full kit 233
Great kit makes cleaning so easy
Did my patio in no time
Fantastic upgraded my old karcher this one is great
Much more powerful and its smaller so neat and easier to store really pleased
As expected the quality is good but not as good as my old one. One of the lances lasted just two days; Amazon replaced it within a week but disappointing that it should have failed in the first place.
The new lance worked well and got the job done. My last Kaercher lasted 10 years – I don’t think this new one will last that long but hopefully I’ll be pleasantly surprised..
Easy to use pressure washer for most surfaces in garden and the car. Have had issues in past with lack of pressure on older machines but purchased larger diameter hose 3/4″ as opposed to standard garden 1/2″ hose and all seems fine.
Found the assembly a bit tricky but once up and running it does what it is supposed to do.
Made a great job of cleaning a heavily green algae covered path.
What a superb tool, assembled quickly 15 minutes.
Powerful and controllable, had my previous powerwash over 20 years and that was good, this one is brilliant, cleaned the drive in under 20 minutes, previously took an hour.
Highly impressed
I gave in in the end and replaced my 10 year old Karcher K2 pressure washer reluctantly. However I am impressed with the quality and how quite this K4 is. The only disappointment is the detergent dispenser! Has to be a Karcher bottle instead of filling a dispenser tank, but I can work around this :-).
Good replacement for an older Karcher. Very powerful, and especially good at cleaning flagstones. A bit cumbersome, but very versatile.
Excellent power washer, well made and easy to set up and use.
If I ever need another one, will go for one with a reel to wind up the power hose.
Seems ok. Shame my last K4 died and no not an air lock. Quality should be better with Karcher for the price but I still bought another. Stick hose is crap and I use an anti kink hose even though the K4 isn’t designed for it – Karcher make an anti kink that fits the gu
brilliant really powerful and really cleans, although my dad complained it took him an hour to put it together lol. worth it though.
Doesnt come with a washer bottle for shampoo etc………even an empty bottle would be ok.
Those are the downsides …apart from that it s good machine and works well.
However if you really want a clean patio.with no black spot or algae………the best thing to do is not to pressure wash it ………..especially if it is stone . Use Sodium Hypochlorite spay it on with a pump sprayer diluted ( see you tube) the remove it gently with your power washer not on full blast.
Excellent using the rotarty cleaning head for drive cleaning keeps the airborne rubbish down whilst providing a spectatcularly clean drive, also does a good job on the car using adjustable pressure lance
This would have taken forever with my old power washer.
I bought this package with the K4 as the next one up seemed to cost an extra 130 for some extra plastic attachments.
Very happy with this.
This is a heavy product but has wheels and a handle for moving. We bought this as we do not have an outside tap and wanted to be able to clean the patio from a water butt. We also purchased the hose to enable us to do this.
Would have preferred a retractable power cord but overall an excellent value product.