There are many gas pressure washers in the market right now. However, these two are the most common you can buy today. That being said, sometimes it can be hard to pick one as the two tend to have almost the same performance. So, which one is the best? To answer that, we look at some of the important features of the two pressure washers to help you make up your mind.
The engine and power
Starting with Generac 6921 model, it comes with an impressive OHV gasoline engine. The engine is even manufactured by the brand itself, making it even better when you have to source for spare parts later on. With a displacement of 196cc, the engine is quite powerful for its applications. To start it, you have to do it manually thanks to having a recoil starting system. The materials used to make the engine are high quality making the engine highly reliable.
The Simpson MSH3125-S model on the other hand comes with a Honda GCV 190 OHC engine. This type of engine is mostly preferred as it can handle multiple applications. With its displacement of 187cc, you will see that it is lower than that in the 6921 model. Nevertheless, the engine design consists of a uniblock and overhead cam configuration. The result is that the engine consumes less fuel and oil.
It is worth noting that both these engines are CARB compliant for emission purposes. This makes them good to use at any time without worrying about emissions. Also, the Simpson Megashot’s engine comes with an additional filter to keep the emissions lower.
As expected, the engine power is always going to define the overall performance of any pressure washer. The Generac 6921 engine delivers the water at a maximum pressure of 2500 PSI and also a flow rate of 2.5GPM.
Things are even better when you switch to the Megashot engine. This is because it can deliver a maximum working pressure of up to 3100 PSI. As for the flow rate, the model can deliver an impressive 2.5 GPM. The manufacturer has also integrated new technology in the nozzle to even boost the pressure. It will definitely have more applications that require the water delivered at a high pressure.
Effectiveness and Reliability
Here, we look at how well these machines can do their cleaning tasks. The Generac 6921 model easily stands out for having several features which would make it good for pressure washing activities. It is also easy to build to the desired water pressure. The machine’s engine is coupled to the axial cam pump. As a result, it makes it easy to access the hose connections and set up the required connections without even kneeling on the ground.
This unit also has great nozzle tips. This helps in terms of versatility on where you can use the model. The nozzle tips are four that come with the model. They include 0-degree nozzle, 25-degree nozzle, 40-degree nozzle, and the quick-click soap nozzle. As you can see, it should be easy to change from one tip to another depending on the application.
Another great feature of the model includes having the oversized tires. These tires are also never-flat run tires. This makes it possible to move the whole unit from one place to another without having to worry about the terrain.
Having the user friendly controls should make it easier for someone who has never tried it out to have a good time using it. The unit still has the ergonomic handle grip. This ensures you feel comfortable and easily move the washer around. These engine controls are easy to access so that you can shut off the engine in an emergency if you have to do so.
Moving onto the Simpson MSH3125-S model, it is also made effective by including several great features. The first thing you will love about it should be that it can deliver high water pressures. This makes it ideal for various applications. The design on the model also makes it good to deliver on the best power without having to worry about noise, vibrations, and heat too.
Having the compact, lightweight design should make it easily maneuverable around the office or home and get it to where you need it. Also, having balanced wheels further makes mobility even better.
The manufacturer sends the model with five quick connect nozzle tips. The aim is to help you end up with the best versatility as you can switch from one nozzle to another fast.
Having an ergonomic design for the spray gun makes it comfortable to use even for long sessions. It also has a safety lock-out system to prevent any cases of accidental activation. The model is crafted using high quality materials, which ensure impressive durability. It is also seen as simple to install and then operate, making it great for beginners to consider it.
Pros and Cons
Pros of Generac 6921
- It comes with a large detergent tank to make soap application easier
- It is a lightweight unit at 57 pounds. This makes it easy for mobility
- It provides up to four nozzles with a quick change feature
- It is generally simple to use
Pros of Simpson MSH3125-S Megashot
- It has a powerful engine
- It delivers top notch performance
- It is made of high quality materials
- It comes with five nozzle tips
Cons of Generac 6921
- Not the best for commercial applications
- It does not meet all the emissions standards
- It tends to have high noise levels
Cons of Simpson MSH3125-S Megashot
- The nozzle holder could be better
- The pump of the unit is less durable
- Slow customer support
These two models mentioned above all have their own strengths and weaknesses. It is therefore up to the user after learning about them to decide which one would be best for them. The best part is that these pressure washers are good in terms of power and they need simple maintenance. Whichever you decide to pick, you will end up with a great unit.