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LWQ S5 Review

This miniature ultralight washer can be easily transported and is the sudsiest and soapiest power washer once you attach its included foam cannon
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LWQ S5 Review
Credit: Natalie Kafader
Price:  $200 List
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Manufacturer:   LWQ
Aspen Rain Weaver
By Aspen Rain Weaver ⋅ Review Editor  ⋅  July 9, 2025
Contributions From: Liber McKee
62
OVERALL
SCORE


RANKED
#6 of 10
  • Cleaning - 45% 6.5
  • Portability - 30% 7.0
  • Noise - 15% 5.0
  • Ease of Use - 10% 4.0

Our Verdict

Like some of its other electrically powered counterparts, the LWQ S5 feels somewhat lacking in power. Having said that, when it came time to wash down any vehicles, toys, or boats, this lightweight pressure washer offered superior capability. The manufacturers include a foam cannon attachment that will engulf whatever it sprays in a thick lather, making short work of dirty tasks. It is also the lightest pressure washer we reviewed and can not only be carried from job to job, but once you've finished for the day, it is small enough to store without a hitch. This was by far our favorite washer in terms of its ability to clean effectively with soap. To see how it ranks against the competition, take a look at our review of pressure washers.
REASONS TO BUY
Supreme soapability
Lightest option available
Foam cannon included
REASONS TO AVOID
Short hose and cord length
Poor ergonomics
Most assembly required

Our Analysis and Test Results

When it came time to soap, clean, and rinse, there was one clear standout throughout our entire line of reviewed pressure washers: the LWQ S5. With reasonable power packed into a small, lightweight build, we could not only scour away bugs and grime but also carry and store this product with ease. This little model also comes with a foam cannon attachment, which will coat an entire car in soapy suds while still providing enough power to reach tricky nooks and crannies. If you're looking for a straightforward, portable pressure washer that will tackle medium to light tasks throughout the household, then the LWQ S5 is for you.

lwq s5 - this little model is not only a bargain but comes with the best soap...
This little model is not only a bargain but comes with the best soap nozzle we reviewed.
Credit: Natalie Kafader

Cleaning


Pressure washers are built and designed with one central purpose in mind — to clean. That's why we have assigned our Cleaning Metric account the most weight, accounting for 45% of each product's final score. To properly appreciate and score all our machines, we needed both objective, hard-hitting data and a series of real-life scenarios that a typical user might encounter over years of everyday use. Throughout most of these tests, the LWQ S5 consistently scrubbed its way to a top-four cleaning score.


Pressure washers have their own unit of measurement for washing power, called “Cleaning Units” (CU), which is determined by simply multiplying the flow (gpm or gallons per minute) by the pressure (psi, pounds per square inch). To determine the LWQ's water output, we set up an enclosed bin on top of a scale and measured the amount of water released over a 60-second period. After weighing and performing some conversions, we measured the highest flow rate of any electric unit we tested at 1.31 gpm — this little machine spews out a significant amount.


Next, we needed to work out how much pressure this little machine could generate, so we attached a psi gauge to the end of our line and smashed the trigger to coax out the most power possible.


Once we recorded a pressure of 1500 psi, we crunched the numbers, and the LWQ S5 scored a respectable 1962 CU. This was relatively average compared to the rest of the field, yet it outperformed many other electric pressure washers we tested.

lwq s5 - despite low psi, the lwq prioritizes a high gpm, resulting in...
Despite low psi, the LWQ prioritizes a high gpm, resulting in gleaming CU results.
Credit: Natalie Kafader

With the aim of understanding power, we constructed a 12-foot-long wooden ramp with bumpers and distance markers on either side. We set it at a 25-degree angle and recorded how far each pressure washer could push and hold a bocce ball up the ramp. Once the LWQ was released upon our “trough” test, we found that it was running in the middle of the pack by holding the ball 3.25 feet from the end of the nozzle.


With our objective data solidified, it was time to move on to some real-life qualitative data, which meant rolling up our sleeves and conducting a vehicle washdown experiment. To our pleasant surprise, the LWQ began to display its best cleaning qualities, one of which is a provided foam cannon. We replaced the gun wand with this soapy accouterment, filled the bottle, and pulled the trigger. Once depressed, this little washer spewed out enough suds to not only effectively coat the car but absolutely douse it. In addition to a dazzling detergent dispenser, there are 0-degree, 15-degree, 25-degree, and 40-degree nozzles covering a range of cleaning needs in terms of effective spray area and power.

Our favorite accessory to use is the LWQ's included foam cannon.
Credit: Natalie Kafader

Portability


When it comes to any large home tool or appliance, its weight, size, and stowage characteristics are all factors that can make a good product into a great one. That's why it's essential to assign a weight to our Portability metric by allocating 30% of the total scores. Fortunately, the LWQ S5 was prepared for this metric; however, to evaluate and score this washer appropriately, we put it through its paces. We tested every unit by weighing, measuring, loading and unloading, rolling along varied terrain, and noting how well it stored at the end of a job.


We were pleased by how lightweight the LWQ turned out to be. At 16.8 pounds, this was by far the lightest pressure washer, and we could nearly chuck it onto the top shelf of a storage rack. It also measured the smallest in our lineup at just 10 inches deep by 10 inches wide and 33 inches tall. This gives a total volume of 1.9 cubic feet, which permits this miniature unit to be stored nearly anywhere with ease.

lwq s5 - the lwq is tied for the smallest unit, making it highly storable.
The LWQ is tied for the smallest unit, making it highly storable.
Credit: Natalie Kafader

Despite its small volume, we found problems arose when we actually rolled it on anything other than flat pavement or concrete. The six-inch plastic wheels catch on uneven ground, and no matter how we push or pull, it is downright awkward to drag around. That being said, we did find some joy in being able to carry the LWQ whenever the terrain got too rough for painless rolling.

lwq s5 - unfortunately, when rolling this lightweight pressure washer, we...
Unfortunately, when rolling this lightweight pressure washer, we found it to be far from ergonomic.
Credit: Natalie Kafader

Once we finished using the LWQ, it was a breeze to carry to the following job site or lift into a car, further adding to its high portability. The cords and hose were a bit haphazard after several uses. They began to take up more space, but that's a natural part of using and owning a pressure washer. We still wholeheartedly recommend this pressure washer to anyone who has a hard time lifting heavy objects.

lwq s5 - we found numerous uses for the lwq in household projects.
We found numerous uses for the LWQ in household projects.
Credit: Natalie Kafader

Noise


The human ear is sensitive to high decibels (dBA) over sustained periods, and a level of 91 dBA for under two hours is safe but not pleasant. That is why we gave our Noise metric a 15% sway in total scores. As with most home tools, pressure washers produce a significant amount of noise. To measure the loudness of each machine, we used a professional sound meter (SPL) both next to each running unit and at a distance of 25 feet.


The readings we collected from right next to the LWQ S5 weren't anything that could potentially damage your hearing, but the 82 decibels came with a sound that encouraged the use of ear protection for anything that wasn't a quick job. After stepping back to 25 feet, we were relieved by a steep drop in intensity of just 68.2 decibels.


This particular machine emits a constant, high-pitched hissing sound but doesn't produce any major clicks, bumps, or pumps typically associated with gas models. However, it does create consistent noise and scores slightly lower in our noise metric compared to other models.

lwq s5 - after doing thorough noise testing, we would classify the lwq as loud.
After doing thorough noise testing, we would classify the LWQ as loud.
Credit: Natalie Kafader

Ease Of Use


As with any home or yard tool, the ease or difficulty of setup and use can turn a swift job into an all-day affair, especially in cases where assembly is required. That's why our Ease of Use metric applies to 10% of each washer's final score. Our assessment notes the difficulty of hose connection and storage, the stability of the units, the required maintenance, and additional features such as nozzle storage and hose or power cord options.

lwq s5 - with nozzle storage located on the wand itself, it takes little...
With nozzle storage located on the wand itself, it takes little effort to change them out when needed.
Credit: Natalie Kafader

No matter which pressure washer you choose from our lineup of reviews, everyone requires some assembly. Regrettably, when we opened the LWQ S5 box, we were greeted by a pile of pieces, and it took us the most time to build. Additionally, the entire experience of balancing and rolling this pressure washer was uncomfortable. It often clipped our heels and tipped over easily when knocked or yanked by the hose. After multiple uses, we also noticed a massive concern regarding longevity. The inlet hose is at ground level on the back of the unit, so after long-term use, the hose inlet connector and the hose itself began to deteriorate due to contact with the ground.


The LWQ does have a couple of bonus features, like a nozzle holder on the wand attachment and a small storage compartment on the top for extra nozzle attachments, parts, snacks, or car keys. We were disappointed to discover that this is the only washer in our entire lineup that lacks a circuit breaker integrated into its power cord.


This cable is also short, at 19 feet, and its included hose is by far the smallest throughout our lineup, measuring only 16.5 feet. It's not a problem for someone with a single-car driveway, but it's a limiting factor for someone with larger projects.


Whether or not these are deal breakers for you, our entire testing team loved how many small spaces this little power washer can store in. By having such a small cord and hose, they were easier to coil and store than most on the LWQ's two provided hooks.

lwq s5 - the small storage container was perfect for storing keys, extra...
The small storage container was perfect for storing keys, extra nozzles, and even a slim beverage at the end of the day.
Credit: Natalie Kafader

Should You Buy the LWQ S5?


This pressure washer is a true game changer when it comes to combining portability with a range of cleaning uses. Its included soap cannon had our testers smiling like kids while performing a vehicle washdown, and it is the lightest option throughout the entire lineup, further adding to its on-the-move efficacy. As our smallest unit tested, the LWQ S5 not only weighs in as a featherweight but also packs a disproportionate amount of power by producing high flow and utilizing minimal pressure, resulting in explosive cleaning prowess.

lwq s5
Credit: Natalie Kafader

What Other Pressure Washers Should You Consider?


While having a good CU count, there are many more rugged machines that we tested, such as the similar corded electric Greenworks GPW3002. It has a heavy-duty frame and produces 2675 CU, over 675 CU more than any other electric washer we reviewed. If you need more power, you can opt for a traditional gas engine model, such as the Simpson CM61083 or Westinghouse WPX3200, which generates 4000 to 6000 CU. Alternatively, if you don't require maximum power and want a highly portable pressure washer, the Dewalt DWPW2100 is by far the most sophisticated option among our tested lineup. It comes in a cube shape with a heavy-duty frame, and every piece needed fits neatly inside its integrated engine/storage design.

Side-by-Side Comparison
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Aspen Rain Weaver and Liber McKee