Karcher 4,000 PSI 3.6 GPM Gas Pressure Washer G 4000 OH (G4000OHR) Reviews
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Karcher 4,000 PSI 3.6 GPM Gas Pressure Washer G 4000 OH (G4000OHR)

1 ratings (1 Epinions review)
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Super strength washing with ease of use

Oct 5, 2011
Review by  
Rated a Helpful Review

Pros:Easy start, low maintence, long run time, plenty of power.

Cons:Lower quality trigger/gun assembly and very noisy

The Bottom Line: Great product with tons of power, easy to use and makes even the toughest cleaning jobs simple. 


I purchased the Karcher 4,000 PSI model as my inground swimming pool needed to be re-painted, so I thought this unit might make the stripping job easier. Needless to say it not only made it easier, but actually did the entire job without the need for scraping or further blasting to remove the previous rubber based paint. I needed to get to the bare concrete as we were switching from a rubber based pool paint to a longer lasting epoxy based paint. This unit had no problems stripping even the thickest sections (multi coat build-up) and all I was left with was a pile of paint chips at the bottom of my pool. I did add a high pressure swirl tip which is not included with the unit, and this basically increases the pressure above 4,000 psi at the tip. It would tear right through wood, so I wouldn’t recommend it for use of decking, but for pavement or concrete it makes short work of anything. The standard fan nozzles that come with this unit are useful for decking, but I would say this 4,000 psi even with the right nozzle is right on the edge of being too powerful for wood decking. Ok for composite and plastic decking, but a little too strong for wood. I also picked up a multi tip pressure washer broom head that has four nozzles and wheels that locks to the tip, which is extremely helpful when you need to clean a large flat area, like a parking lot or driveway.
Overall the unit functions flawlessly. Easy to start, easy to access oil changing, quick fill tank which gives good run time. Basically this is an all-around quality product as I’ve always expected from Karcher.

If I have one complaint about this unit it would have to be the trigger/gun unit. It started out fine, but after a while it became very hard to engage the spray due to the enormous pressure built up in the gun. It always cycles, but more recently it doesn't always shoot on every pull. 


Recommend this product? Yes

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