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Honest Generac Onewash Review

This Generac Onewash review will display the many features that will make outdoor cleaning extremely simple. A power washer is capable of removing tough dirt and grime from areas like patio furniture, siding, driveways, cars, or anything big. There will be no need to exert physical strength during the cleaning process. Instead, the machine will do all of the work.


While comparing various units, a person must consider individual needs. Each pressure washer will offer different amounts of power at different price levels. Here is closer look at all of the special parts of this machine.


PSI (Pounds Per Square Inch)

​PSI is the measurement of power that removes dirt from various surfaces. The average machine provides at least 1,300 PSI. This Generac Onewash will give up to 3,000 PSI. This is a true testament to its power and effectiveness.


​GPM is an important thing to discuss in a pressure washer review. It stands for gallons per minute of water that the unit will produce under a particular pressure. This machine has 2.8 GPM, so cleaning will be a breeze.

​Cleaning Units (Water Pressure X Water Flow)

​To calculate cleaning units, a person must multiply water flow by water pressure. The end result will display how effective the washer will be at ridding tough dirt and stains. Before a consumer makes a final decision, it will be smart to compare cleaning units on a machine. This particular power washer provides 84,000 cleaning units. This is a powerhouse that will top almost any residential pressure washer on the market.


​This Generac Onewash has a horizontal axial cam pump. It is easy to access, so connecting the water hose and siphon will not be a problem. The axial pump includes a strong forged brass manifold, so it supplies maximum water flow and long durability.

​Power Supply

​A power washer is usually powered by gas or electricity. This particular model has a gas engine. There is a 212 occ OHV engine with a starter that is simple to access on the side. The major bonus is a low oil shutdown, so the unit will not become damaged when oil levels are too low. There is also an integrated unloader valve to ensure easy setup.

​Hose Length

​One important feature of a power washer is its hose length. This unit has a 30 foot PVC hose, so it will be easy to reach any area that needs to be cleaned.


​Another essential feature of a power washer is its spray ability. This unit has three cleaning nozzles; 0 degree, 25 degree, and soap. Thanks to the cushion grip, the spray gun is extremely comfortable in the hand and will not bring fatigue.


​This unit is not carb compliant. This means that it cannot be used or sold in California.


​People want to understand a product's dimensions before making a purchase.

​Length: 20 1/2 inches

Width: 21 inches

Height: 39 1/2 inches

Generac Onewash Review


This Generac power washer is not the lightest model on the market, but the wheels make it easy to move around. It weighs approximately 70 pounds.​

Additional Features

There are many useful features that come with this Generac Onewash. The special power dial allows a person to adjust PSI from 2,000 to 3,000. This helps to customize the machine for a specific task. The control panel places all of the essentials in one location, so adjustments are easy. The automated system protects the unit from damage. For example, if the water or oil runs low, there is an LED alert that activates and stops the power. The drainable detergent tank holds 3/4 gallon of soap and contains a plug. This gives a user a convenient way to store cleaning fluids on the machine. It can be easily cleaned and emptied with an ordinary garden hose. Finally, the unit is designed to be simple for storage and transportation. The large wheels make it easy to move from place to place on any terrain. There is also a folding handle to aid with storage. Secure onboard storage is provided for the gun, tips, and hose as well.


​There are many accessories that a person may consider buying along with the Generac Onewash. For instance, it may be wise to consider various nozzles for additional cleaning tasks. It may also be wise to try other detergents as well.


There are a great deal of positives associated with this machine. The construction is very durable and easy to control. Many other pressure washers tend to place controls in inconvenient places. With this unit, all controls are located in the center of the machine and are clearly marked. The four-in-one settings are designed to make cleaning tasks simple. A person can go from washing the car to a brick wall with the flip of a switch. The unit is also compact and easy to transport.


​Despite the fabulous positives mentioned in this Generac Onewash review, it is important to discuss some negatives. The most common complaint is that the unit only comes with three nozzles. However, it is possible to buy more at a separate time. Also, some people would like the unit to have an electric start. This is not necessary because the recoil start is simple to use.

​Consumer Ratings

​This Generac Onewash pressure washer was well received by the public. It received 3 1/2 out of 5 stars, based on 21 customer reviews. Most customers love how comfortable the unit fits in the hand. Also, the control panel makes all functions easy to adjust. The power dial is a unique feature that makes the unit very user friendly.


Even though this pressure washer is more expensive than some, it is worth every penny. It offers commercial grade power in a residential machine. Generac is known for quality products. This power washer offers great features that will tackle tough cleaning tasks with ease. This machine provides professional results without the added expense. After a few uses, the machine will pay for itself. This Generac Onewash review recommends this unit to anyone looking for power and durability in one cleaning machine.

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