The Champion 100790 is a gas-powered pressure washer offering a maximum water pressure of 4200 PSI and flow of 4 GPM. (Read full specs)
Zoom on the Champion 100790
In a nutshell, the Champion 100790 is a heavy duty, commercial pressure washer, which not only offers an all-around versatile cleaning experience, but that also allows:
- spot cleaning of hard, paintless surfaces and reaching far-away areas
- intense cleaning of tough, paintless surfaces
- cleaning of painted and frail surfaces
- application of detergent and cleaning solutions
The Champion 100790's brass triplex pump, powered by a powerful 389 cc engine, can provide a pressure of up to 4200 PSI (approximately 70 times more than a standard garden hose) and a flow of up to 4 GPM (values claimed by the manufacturer). The Champion 100790 thus has a cleaning power of 16800 Cleaning Units.
A classic pull-start mechanism is responsible for starting the gas-powered pressure washer’s Champion engine.
Gasoline storage is facilitated by a steel fuel tank with a maximum capacity of 1.6 gallon.
Design & Handling
The wheelbarrow design of the Champion 100790 grants mobility and stability to the unit. The robust steel frame guarantees longevity of the assembly. The reversible handle offers further versatility, as its different positions make the unit less bulky when stored.
The unit's weight of 124.6 lbs renders its carrying and transportation challenging, as it is far from lightweight. A key role in its final weight is played by its 389 cc Champion engine, the triplex pump and steel frame. However, the unit’s two 10" never-flat wheels are crucial to its maneuvrability, since they provide a smooth method of manipulation on the job.
The Champion 100790's package includes a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, with a more detailed description below.
- Soap injection: A safe detergent storage is facilitated by a 1 gal tank. The Champion 100790 includes an automatic soap dilution mechanism, which will dilute the detergent using a 12:1 ratio. Whenever a soap nozzle is connected, the detergent is automatically added to the water.
- Pressure hose: The included 50 ft ⌀5/8" high-pressure hose can be neatly stored on the unit when idle thanks to a set of easy-to-use straps.
- Spray gun and wand: A side hook allows for an easy storage of the included classic ergonomic spray gun and its wand.
- Nozzles: The following table illustrates the 5 included nozzles, along with the surfaces which they are the most suitable for.
|Concrete, brick, masonry||Use with caution||Suitable||Suitable||Suitable||Suitable|
|Siding, gutters, house||Not recommended||Use with caution||Use with caution||Suitable||Suitable|
|Fencing, deck, patio||Not recommended||Use with caution||Use with caution||Suitable||Suitable|
|Lawn equipment, boat, RV||Not recommended||Use with caution||Use with caution||Use with caution||Suitable|
Note: The shape of the nozzles above is for illustration purposes only and may differ.
Red cross: Not recommended. Green check: Suitable. Orange check: Use with caution.
- Onboard storage: The Champion 100790's handy storage area lets you store nozzles and accessories, and thus, you’ll be always prepared and have everything necessary for the job at hand.
- Safety: Safety of operation is enhanced by a trigger lock mechanism (which prevents accidental operation), a low oil protection and a thermal relief valve (which helps to prevent internal pump damage).
- Accessories: On top of an owner's manual (opens in a new tab) and the usual documentation to get you swiftly started, the Champion 100790 also comes with spray gun, wand, funnel, soap hose, oil and pressure hose.
- Emissions: The Champion 100790 is NOT CARB-compliant. Thus, it cannot be purchased or sold in California.
The Champion 100790's performance versus other pressure washers
The following charts are provided to give you an idea of how the key specs of the Champion 100790 compare to similarly priced pressure washers.
- With 4200 PSI, the Champion 100790 ranks as one that can reach an above average pressure, amongst the gas-powered products that cost between $675 and $800. If you're going after the highest possible power of the water stream, one of the best in this price range is the Simpson PS60843 that can reach up to 4400 PSI.
- With a water flow of up to 4 GPM (gallons per minute), this washer belongs to the best of the above-mentioned price range, as it can deliver a high volume of water.
- The 100790, with its 16800 Cleaning Units (PSI x GPM) sits at the high end of the cleaning efficiency spectrum, when compared to other devices of similar price. If the highest overall cleaning power is your top priority, the Simpson PS60843, which can reach up to 17600 Cleaning Units, is one of the most efficient of the devices in the current price range.
As you can see from this interactive chart, when compared to other gas-powered washers between 16500 and 17000 Cleaning Units, the Champion 100790 is on the cheap side of the price range.
It can therefore be a really good buy if you're looking to acquire a budget pressure washer.
Features and Specifications
|Water||Cold (104°F max.)|
|Engine||389 cc Champion OHV 4-stroke|
|Pump||Annovi Reverberi Triplex|
|Soap tank||1 gal|
|Nozzles||0°, 15°, 25°, 40°, Soap|
|Quick connect nozzles||Yes|
|Hose||50 ft, ⌀5/8|
(L x W x H)
|Approx. 49.5 x 23.9 x 28.1 in|
|Wheels||2 wheels, ⌀10", never flat|
|Included accessories||Oil, funnel, wand, spray gun, high pressure hose, soap hose, 5 nozzles|
|Security||Low oil, trigger lock and thermal relief valve|
Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.
About Champion Power Equipment
Champion Power Equipment is a US-based power equipment manufacturer founded in 2003. Even though Champion is best known for their portable generators, the company has an extensive portfolio of products, including logging and lawn equipment, and pumps and pressure washers. Their products are listed as engineered in the US, in Sussex, WI. However, the company does not provide information on the origin of their components. Champion has two major distribution centers in Northern America. Their US distribution center is located in Jackson, TN and Canadian in Burlington, Ontario.
The Champion 100790 is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Champion pressure washers, please contact the Champion Customer Support: 1-877-338-0999.