The classical way of cleaning our yards and vehicles is with a rag, soap, and garden hose. What you undoubtedly know about garden hoses is that they are extremely inefficient in using water. You can waste hundreds of gallons of water per minute without making a dent in the total mess of your driveways and yards.
The most effective and efficient way of clearing the outside of your home from debris – e.g., fallen leaves, mud, and oil spills – is by using an electric pressure washer. These machines can produce tremendous amounts of force for lifting and eliminating the toughest messes.
This company produces some of the most reliable pressure washers, and both of these models can be evidence of this fact. However, when it comes to tools, there can only be one “best” tool to choose from. We’re going to compare these two models with each other and determine which of them provides better value.
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PSI and GPM
The most important performance variables to consider are PSI and GPM. PSI provides information on how much power the electric pressure washer can produce, whereas the GPM count indicates how much water the machine uses to reach its maximum PSI rating. The GPW1702 can generate up to 1,700 PSI while consuming 1.2 GPM of water.
As for the GPW1951, it can produce up to 1,950 PSI with 1.2 GPM of water use. We can see a minor difference in maximum pressure, but they use the exact same amount of water in doing so. You can alter the total pressure applied on your home and vehicle by attaching the quick-connect nozzles (more on this later).
Conclusion: Looking at their PSI ratings, we can conclude that there isn’t going to be a significant difference between the two models. There won’t be that many cleaning tasks that the GPW1951 can do that the GPW1702 can’t. However, when it comes to GPM, we feel that the GPW1951 is the more superior model. It uses less water to produce greater amounts of pressurized water, so you can complete heavy-duty cleaning jobs while consuming less water.
GPW1702 and GPW1951
There are three ways to alter how much pressure is exerted from the water. The first is with a twisting nozzle which increases and decreases pressure as you turn the nozzle.
The second way by manually altering the total pressure by turning a knob, but this method is rarely found in electric pressure washers. The most common method of changing pressure, and coincidentally the way that these two Greenworks models use, is by attaching quick-connect nozzles to the end of the wand. Both of these tools come with 25° and 40° spray-fan nozzles, so you don’t need to worry about shattering your car’s and home’s windows when washing.
Soap Nozzle vs Soap Applicator
The best electric pressure washers give users the ability to shoot soap from a tank or dedicated soap bottle. The GPW1702 uses the latter, meaning you’ll need to manually detach the spray wand from the gun in order to mount the soap bottle. Unfortunately, you’re not going to get extremely foamy soap with this method.
One of the main differences between these two models is that the GPW1951 has a built-in soap tank. To shoot soap from the wand, simply attach the third quick-connect nozzle (soap nozzle) to the end of the wand and pull the trigger. To switch back to rinsing mode, re-attach the 25° or 40° nozzle.
Conclusion: Choosing between a separate soap applicator and a built-in soap tank can be difficult, and it all comes down to personal preference. We personally like the built-in tank better than the soap applicator. However, the GPW1951 provides a frothier layer of soap, adding to our overall satisfaction of using an electric pressure washer.
GPW1702 and GPW1951
The greatest hassle of using an electric pressure washer is cleaning up when you’re all done. With certain models, you’ll need to manually wrap the hose in order to prevent tearing or ripping and store it in a safe spot in your garage or closet. To simplify the cleanup process, Greenworks has included built-in hose reels to both of these models. To wrap the hose, just turn the hose reel and watch as the hose coils up quickly. In addition, there’s a reduced risk of damage to the hose when using a built-in reel.
GPW1702 and GPW1951
In our opinion, the most amazing thing about these two products is the temperature of the water which these machines can use. Most models limit their users to using cold water (less than 80°F). Anybody who’s ever washed dishes knows that warm and hot water can get rid of greasy, caked-on messes much quicker than cold water. Both the GPW1702 and GPW1951 have a maximum water inlet temperature of 104°. This should be sufficient in eliminating motor oil stains and slippery moss and mildew from your patio.
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Greenworks GPW1702 vs GPW1951: Verdict
The two main differentiating features between the GPW1702 and GPW1951 are their PSI/GPM ratings and method of applying soap. They produce similar amounts of pressure, but the GPW1951 uses less water in doing so. In the long run, you can end up saving tens, if not hundreds, of gallons of water every year with the GPW1951 while producing better results.
Next, the soap applicator of the Greenworks GPW1702 is just a tad bit unsatisfactory. It’s going to be impossible to apply a layer of thick soap on your vehicles or patio with the soap applicator. As for the GPW1951, the built-in tank and soap nozzle helps is frothing up the soap, making it easier to spread more evenly on whatever surface you’re cleaning.
Admittedly, this is our personal preference and not an entirely objective conclusion. However, the best thing about these Greenworks-made machines is that they can use warm water. Cleaning up oil spills, slippery mildew, and caked-on mud and dirt stains can be dissolved much quicker with warm water, making these two models excellent choices to have at home.
|Best of the Best||Most Popular||Also Great|
|Sun Joe SPX3500||Sun Joe SPX3000||Karcher K5|
| • 2300 PSI|
• 1.2L tank
• 1.48 GPM
• 46.5 lbs
| • 2030 PSI|
• 0.9L tank
• 1.76 GPM
• 31 lbs
| • 2000 PSI|
• 1.0L tank
• 1.4 GPM
• 32 lbs