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Champion 100790 Spec Review

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)

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Champion 100790 4200PSI Gas Pressure Washer
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Set an alert for the Champion 100790 - Current lowest price: $879.00
Price History
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Price history for the Champion 100790
Latest updates:
  • $879.00 - July 8, 2021
  • $861.93 - June 26, 2021
  • $749.00 - May 29, 2021
  • $729.00 - March 3, 2021
Data source: zoro.com
Since: March 3, 2021
  • Highest Price: $879.00 - July 8, 2021
  • Lowest Price: $729.00 - March 3, 2021

Description

Champion’s commercial duty 4200-PSI gas pressure washer with 4.0 GPM features five nozzles,10-inch tires, a 50-foot high-pressure rubber hose, and an AR Triplex Brass Head pump. (source: Champion (opens in a new tab))

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

Its power characteristics and design, its main features and all its additional features are presented ahead.

Power

The Champion 100790 in use

The Champion 100790

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.

Main Features

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.
 


15°

25°

40°

Soap
Concrete, brick, masonryUse with cautionSuitableSuitableSuitableSuitable
Siding, gutters, houseNot recommendedUse with cautionUse with cautionSuitableSuitable
Fencing, deck, patioNot recommendedUse with cautionUse with cautionSuitableSuitable
Lawn equipment, boat, RVNot recommendedUse with cautionUse with cautionUse with cautionSuitable

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.

Other Features

Some of the accessories of the Champion 100790

Some of the included accessories

  • 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.

Product Videos

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.

  • The Champion 100790, reaching a PSI of up to 4200, is one of the most powerful gas-powered units in $800-900 price range.
  • In the aforementioned price range, the 4 GPM (gallons per minute) of this washer makes it one of the best performing units in terms of the delivered volume of water.
  • With a rather impressive value of 16800 Cleaning Units (PSI x GPM), the 100790 has one of the highest cleaning efficiencies compared to similarly priced devices.

Price comparison

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.

The bottom line

STRENGTHS:
  • Inexpensive
  • Triplex pump
  • Designed to be stable
  • Good range of nozzles included
  • Automatic detergent dilution
  • Onboard storage
  • Several security features
  • High PSI for the price
  • High GPM for the price
  • High CU for the price
WEAKNESSES:
  • Not CARB-compliant

Do you own the Champion 100790 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
FuelGas-Powered
HandlingWheelbarrow
WaterCold (104°F max.)
PSI4200
GPM4
Cleaning Units16800
Engine389 cc Champion OHV 4-stroke
PumpAnnovi Reverberi Triplex
Pump materialBrass
Features
FrameSteel
Soap injectionYes
Soap tank1 gal
Soap dilution12:1
Nozzles0°, 15°, 25°, 40°, Soap
Quick connect nozzlesYes
Onboard storageYes
Hose50 ft, ⌀5/8
Hose storageStraps
Misc
Dimensions
(L x W x H)
Approx. 49.5 x 23.9 x 28.1 in
Weight124.6 lbs
Pressure controlValve
Wheels2 wheels, ⌀10", never flat
Included accessoriesOil, funnel, wand, spray gun, high pressure hose, soap hose, 5 nozzles
SecurityLow oil, trigger lock and thermal relief valve
EmissionsEPA
Warranty2 years

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.

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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.

Warranty Information

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.

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