Best Soap Tank Pressure Washers of 2026

Bryan Hicks Avatar
Bryan Hicks
Last Updated: Jan 11, 2026

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Soap tank pressure washers are an essential tool for those who want to effectively remove dirt and grime from their outdoor surfaces. These machines come equipped with a soap tank that allows users to apply soap or detergent to the surface being cleaned, ensuring a thorough and deep clean. The pressure washer's high-pressure stream of water combined with the soap or detergent helps to break down even the toughest stains, leaving surfaces looking brand new. Soap tank pressure washers are available in a range of sizes and power levels, making them suitable for both residential and commercial use.

At a Glance: Our Top Picks

Westinghouse ePX3500 Electric Pressure Washer Cover #TOP 1
Westinghouse ePX3500 Electric Pressure Washer
ftb score rating icon 9.8
Westinghouse WPX3000e Electric Pressure Washer Cover #TOP 2
Westinghouse WPX3000e Electric Pressure Washer
ftb score rating icon 9.7
Sun Joe Electric Pressure Washer Cover #TOP 3
Sun Joe Electric Pressure Washer
ftb score rating icon 9.5

Top 6 Soap Tank Pressure Washers

#TOP 1

Westinghouse ePX3500 Electric Pressure Washer

ePX3500
Black
2500 Max PSI
Westinghouse ePX3500 Electric Pressure Washer Cover
Westinghouse ePX3500 Electric Pressure Washer, 2500 Max PSI 1.76 Max GPM with Anti-Tipping Technology, Onboard Soap Tank, Pro-Style Steel Wand, 5-Nozzle Set, for Cars/Fences/Driveways/Home/Patios

The Westinghouse Pressure Washer is a powerful cleaning tool with 2500 Max PSI and 1.76 GPM water flow, ideal for deep-cleaning tasks. Its Pro-Style Steel Wand with 5 Quick-Connect Nozzles allows versatile cleaning options for cars, fences, driveways, and more. The compact and lightweight design, along with four 360° steering wheels, ensures easy maneuverability without the risk of tipping. With features like an onboard soap tank and automatic pump stop, you can effortlessly tackle heavy-duty cleaning tasks with energy efficiency and convenience.

What We Like
Compact and easy to store
Strong cleaning performance
Easy assembly and operation
Long cord and hose
Stable and maneuverable design
#TOP 2

Westinghouse WPX3000e Electric Pressure Washer

WPX3000e
Blue
3000 Max PSI
Westinghouse WPX3000e Electric Pressure Washer Cover
Westinghouse WPX3000e Electric Pressure Washer, 3000 Max PSI and 1.76 Max GPM, Induction Motor, Onboard Soap Tank, Spray Gun and Wand, 5 Nozzle Set, for Cars/Fences/Driveways/Homes/Patios/Furniture

The Westinghouse WPX3000e Washer offers powerful cleaning with up to 3000 PSI and 1.76 gallons per minute, making it ideal for tackling decks, sidewalks, fences, cars, and patio furniture. It comes with a built-in 0.45-gallon soap tank, so you can easily apply detergent for tougher grime. The 25-foot flexible hose and lightweight metal spray gun with five quick-connect nozzles give you versatility and ease when switching between cleaning tasks. Plus, its durable electric motor and maintenance-free pump ensure reliable, efficient water flow to get your cleaning done quickly without hassle.

What We Like
Easy assembly
Strong cleaning power
Convenient detergent tank
Quiet operation
No leakage
#TOP 3

Sun Joe Electric Pressure Washer

SPX3000
Black
15.6 x 13.5 x 33.9
Sun Joe Electric Pressure Washer Cover
Sun Joe Electric Pressure Power Washer, Heavy-Duty 2500 Max PSI (2030 PSI PWMA Rated), Cleaning Machine for Patios, Decks, & Sidewalks, Safety First GFCI Power Cord, w/Dual Soap Tanks, SPX3000

Experience powerful and versatile cleaning with the Sun Joe Electric Pressure Washer. Equipped with a 14.5-Amp/1800-watt motor, it generates up to 2030 PSI of water flow, allowing you to tackle a variety of cleaning tasks such as homes, buildings, cars, trucks, boats, decks, driveways, patios, and lawn equipment. It also features two onboard detergent tanks that carry and store different types of detergent to simultaneously tackle different cleaning projects. With the Total Stop System, the pump automatically shuts off when the trigger is not engaged, saving energy and prolonging the pump's life. Ensure a fully functioning washer by properly and securely fastening all hoses and cleaner connections.

What We Like
Powerful performance
Affordable price
Easy to maneuver
#TOP 4

Westinghouse WPX3400e Electric Pressure Washer

WPX3400e
Blue
3400 Max PSI
Westinghouse WPX3400e Electric Pressure Washer Cover
Westinghouse WPX3400e Electric Pressure Washer, 3400 Max PSI and 2.0 Max GPM, Brushless Motor, Onboard Soap Tank, Spray Gun and Wand, 5 Nozzle Set, for Cars/Fences/Driveways/Homes/Patios/Furniture

The Westinghouse Pressure Washer delivers powerful cleaning with a maximum pressure of 3400 PSI and a flow rate of 2 GPM, making it perfect for tackling tough outdoor jobs like cleaning decks, driveways, and cars. Its onboard soap tank allows you to easily mix soap with water for enhanced cleaning power. You’ll appreciate the 25-foot flexible hose and lightweight spray gun, which make maneuvering around your property hassle-free. With a durable steel frame and never-flat wheels, this pressure washer is designed for easy transport and stability during use.

What We Like
High pressure for deep cleaning
Onboard soap tank
Flexible, long hose
Durable steel construction
Easy to transport
#TOP 5

Giraffe Tools G30 Wall Mounted Pressure Washer

HP135-G30B-SLI-N-V
Light Silver
Giraffe Tools G30 Wall Mounted Pressure Washer Cover
Giraffe Tools Wall Mounted Pressure Washer G30 with Upgraded 1800W Motor, Max 2900 PSI, 2.2 GPM Electric Power Washer with 100ft Retractable Black Pressure Hose, Automatic Rewind, Light Silver

The Giraffe Tools G30 Washer is designed to make your cleaning tasks easier and more efficient. With its powerful 1800-watt motor, you can quickly tackle tough dirt like tar, grease, and rust without much effort. The wall-mounted design helps you keep your garage neat by storing the washer out of the way, so you don’t have to deal with clutter. Its 100-foot retractable hose lets you reach distant areas easily, and the retractable system protects the hose from damage while making it simple to rewind. Plus, you get peace of mind with a 2-year warranty that covers repairs promptly, so you can clean confidently without worry.

What We Like
Powerful 1800W motor
Wall-mounted for neat storage
100ft retractable hose
2-year hassle-free warranty
#TOP 6

CRAFTSMAN Electric Pressure Washer

CMEPW1900
Black, Red
CRAFTSMAN Electric Pressure Washer Cover
CRAFTSMAN Electric Pressure Washer, Cold Water, 1900 -PSI, 1.2-GPM, Corded (CMEPW1900)

The CRAFTSMAN Electric Pressure Washer has a maximum pressure of 1900 PSI and a flow rate of 1.2 GPM. It comes with three nozzles, including a turbo nozzle, and an integrated soap tank for added cleaning power. The pressure washer also features onboard storage for accessories, an 8-inch wheel design for easy maneuvering, and a 35 ft. power cord for extended reach. It is CETA certified and has a 25 ft. kink-resistant hose for long-lasting performance.

What We Like
Powerful 1900 PSI and 1.2 GPM cleaning power
Integrated soap tank for added cleaning power
Onboard storage for accessories
8-inch wheel design for easy maneuvering
35 ft. power cord for extended reach
Buying Guide Image

Best Soap Tank Pressure Washers You Are Looking For

Introduction

Pressure washers are an essential tool for keeping outdoor surfaces clean and sparkling. They can blast away dirt, grime, and even stubborn stains with ease. But not all pressure washers are created equal. Some come with soap tanks, which can make cleaning even more effective. In this article, we'll explore how to choose the best soap tank pressure washer for your needs.

Why Choose a Soap Tank Pressure Washer?

A soap tank pressure washer can make a big difference in the cleaning power of your pressure washer. By adding soap or detergent to the mix, you can break down dirt and grime even more effectively. Soap tanks are especially useful for cleaning large surfaces, such as driveways, patios, and decks.

Considerations When Choosing a Soap Tank Pressure Washer

  1. PSI and GPM: The first thing you should consider when choosing a soap tank pressure washer is the PSI (pounds per square inch) and GPM (gallons per minute) ratings. These measurements indicate the power and flow rate of the machine, respectively. Generally, higher PSI and GPM ratings mean more cleaning power.

  2. Soap Tank Capacity: The size of the soap tank is also an important consideration. If you plan to clean large areas, you'll want a machine with a larger soap tank so you don't have to refill it as frequently.

  3. Nozzle Options: Different pressure washers come with different nozzle options. Some have adjustable nozzles that allow you to switch between fan-shaped and pinpoint streams. Others have interchangeable nozzles that you can switch out depending on the job.

  4. Cord Length: If you plan to use your pressure washer far away from a power source, you'll need to consider the length of the power cord. Some machines come with longer cords than others.

Top Brands for Soap Tank Pressure Washers

When it comes to soap tank pressure washers, there are several top brands to consider. These brands have a reputation for producing high-quality machines that are reliable and effective.

  1. Sun Joe: Sun Joe is a popular brand for pressure washers, and their soap tank models are no exception. Their machines are compact, lightweight, and easy to use, making them a great choice for homeowners.

  2. Karcher: Karcher is another well-known brand for pressure washers. Their soap tank models have a range of PSI and GPM ratings, so you can choose the right one for your needs.

  3. Greenworks: Greenworks is a newer brand in the pressure washer market, but they've quickly gained a reputation for producing high-quality machines. Their soap tank models are no exception, with powerful motors and large soap tanks.

Conclusion

Choosing a soap tank pressure washer can make a big difference in the cleaning power of your pressure washer. By considering factors such as PSI and GPM ratings, soap tank capacity, nozzle options, and cord length, you can choose the right machine for your needs. And with top brands such as Sun Joe, Karcher, and Greenworks, you can be sure that you're getting a reliable and effective machine.

Frequently Asked Questions (FAQs)

1. Can you add a soap tank to a pressure washer?

If your pressure washer doesn't have a detergent tank, you'll need to find a wand attachment that allows you to add your soap to the end of the nozzle. Whether you're using a cold or hot water pressure washer, you can take things to the next level with detergent.

2. Can a pressure washer spray soap?

Most pressure washers today feature onboard detergent tanks. ... After you've filled your detergent tank, make sure the valve is turned to "On" so the detergent will be applied as you spray. Switch to a low-pressure detergent nozzle, as high-pressure nozzles will not work with detergent.

3. Can you run a pressure washer from a tank?

When using water from a tank, make sure that your pressure washer has an inlet filter. Water from a water tank will generally have more dirt than water from an ordinary faucet. This dirt is harmful to the pressure washer pump. If your pressure washer does not have one, purchase a good quality one.

Editor's Notes

During our soap tank pressure washer research, we found 24 soap tank pressure washer products and shortlisted 6 quality products. We collected and analyzed 598,232 customer reviews through our big data system to write the soap tank pressure washers list. We found that most customers choose soap tank pressure washers with an average price of $146.72.

The soap tank pressure washers are available for purchase. We have researched hundreds of brands and picked the top brands of soap tank pressure washers, including Westinghouse, Sun Joe, Giraffe Tools, CRAFTSMAN. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Bryan Hicks Avatar

Bryan Hicks is a professional gardener and a writer who lives in North Texas with his family and his dog. Bryan has spent more than half of his life surrounded by garden products. He has extensive experience in garden makeovers and maintenance and lawn care. His areas of expertise include outdoor decoration, gardening and garden design.