Best Soap Tank Pressure Washers of 2025

Bryan Hicks Avatar
Bryan Hicks
Last Updated: Jan 10, 2025

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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 3200 PSI Gas Pressure Washer Cover #TOP 2
Westinghouse 3200 PSI Gas 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 10 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
Powerful 2500 Max PSI
Compact and Lightweight
Quick-Connect Nozzles
#TOP 2

Westinghouse 3200 PSI Gas Pressure Washer

WPX3200
Blue/Black
Westinghouse 3200 PSI Gas Pressure Washer Cover
Westinghouse WPX3200 Gas Pressure Washer, 3200 PSI and 2.5 Max GPM, Onboard Soap Tank, Spray Gun and Wand, 5 Nozzle Set, for Cars/Fences/Driveways/Homes/Patios/Furniture

Experience powerful and deep-cleaning water pressure with the Westinghouse 3200 PSI Gas Pressure Washer. Perfect for decks, sidewalks, siding, fences, garage floors, exterior walls, cars, and patio furniture, this pressure washer features a 3200 PSI and 2.5 GPM which can easily blast away dirt and grime. With a half-gallon onboard soap tank, you can easily switch between water and soap for an even deeper clean. The 25-foot hose and lightweight spray gun make it easy to maneuver and reach every nook and cranny. Plus, the tough steel frame construction and never-flat wheels make it easy to transport and store. Get your cleaning done fast with the Westinghouse 3200 PSI Gas Pressure Washer.

What We Like
Powerful 3200 PSI
Half-gallon onboard soap tank
25-foot hose with lightweight spray gun
Tough steel frame construction

Sun Joe Electric Pressure Washer

SPX3000
Black
15.6 x 13.5 x 33.9
Sun Joe Electric Pressure Washer Cover
Sun Joe SPX3000 Electric Pressure Power Washer, 2030-PSI Working Pressure, PWMA-Rated, 1.2-GPM Water Flow, Dual Onboard Soap Foam Tank, Black

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

AgiiMan 4800PSI Electric Pressure Washer

Green
4800PSI
AgiiMan 4800PSI Electric Pressure Washer Cover
AgiiMan Electric Pressure Washer - 4800PSI Max 3.2 GPM Power Washer with 35FT Power Cord, 20FT Hose, Soap Tank, High Pressure Washer Electric Powerd Car Cleaning for Garden, Patios, Yard, Green

The AgiiMan Electric Pressure Washer delivers powerful cleaning with its 4800PSI pressure and 3.2GPM flow rate. This means you can easily eliminate stubborn dirt from various surfaces like decks, driveways, and cars. With a 20ft hose and 35ft power cord, you can reach every corner of your yard without hassle. The included soap bottle and four nozzles allow you to customize the pressure for any cleaning job, making it versatile for different tasks. Plus, the safety features ensure you can clean confidently, as the system automatically shuts off when not in use, extending the life of your washer.

What We Like
High pressure for tough cleaning
Long reach with hoses
Customizable pressure options
Safety features for peace of mind
#TOP 5

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 6

PowerSmart DB1051 Gas Pressure Washer

DB1051
Red,Black
PowerSmart DB1051 Gas Pressure Washer Cover
PowerSmart Gas Pressure Washer 3200 PSI, 2.5 GPM with Soap Tank, Metal Spray Wand, 5 Nozzles for House, Driveways (DB1051)

The PowerSmart Pressure Washer is a robust cleaning tool designed to tackle tough jobs. With its powerful 208cc OHV engine, it generates an impressive 3200 PSI and 2.5 GPM, making it ideal for cleaning driveways, houses, and even stripping paint. Its durable steel frame and 10-inch pneumatic wheels enhance portability and stability, allowing you to easily maneuver it wherever needed. You’ll appreciate the convenience of the on-board soap tank, which simplifies soap application for a more effective clean. Plus, with 95% of the unit pre-assembled and an easy recoil starter, you can get to work with minimal setup time.

What We Like
High pressure for tough jobs
Durable and portable design
Convenient soap tank
Easy to start and use

BLUBERY 3600 PSI Gas Pressure Washer

Black
3600PSI
BLUBERY 3600 PSI Gas Pressure Washer Cover
BLUBERY 3600 PSI Gas Pressure Washer, 2.7 GPM Heavy Duty High Power Washer, 30Ft Pressure Hose&Soap Tank,5 Pressure Nozzles,Black

The BLUBERY Gas Pressure Washer is a powerful cleaning machine that meets all your pressure washing needs. With a 3600 PSI and 2.6 GPM power, it can tackle a range of cleaning tasks including cars, fences, lanes, residential areas, terraces, and furniture. The pressure washer features a 212CC OHV engine and a horizontal reverse overpressure pump, ensuring high performance and efficiency. Its 30 ft X 1/4" pressure hose and 13-inch pneumatic off-road motorized wheels make it easy to move and store. The washer comes with 5 quick adjustable hose nozzles, allowing homeowners to easily switch between different pressure configurations for optimal cleaning. With its industrial-grade design, easy installation, and operation, the BLUBERY Gas Pressure Washer is a reliable and convenient choice for all your cleaning needs.

What We Like
Powerful
Easy to move
Quick adjustable hose nozzles
#TOP 8

GUIFIN Portable Electric Pressure Washer

GUIFIN
Green
GUIFIN Portable Electric Pressure Washer Cover
Electric Pressure Washer - GUIFIN Portable Power Washer with Soap-Adjustable Tank, Steel Spray Wand, 4 Pressure Tips, 6.6 FT Inlet & 23 FT Outlet Hose, 3800PSI & 2.4GPM, for Patio/Car/Driveway/Fence

The GUIFIN Power Washer is designed to make your cleaning tasks easier and more efficient. With its robust 14.5-AMP motor, it delivers impressive water pressure of up to 3800PSI, allowing you to tackle tough dirt quickly. The 400ml adjustable soap tank lets you customize foam thickness, ensuring better coverage and cleaning results. It also includes four interchangeable pressure tips, so you can choose the right spray for different surfaces, from stubborn stains to delicate outdoor furniture. Lastly, the versatile water-sucking options enable you to draw water from various sources, making it convenient for any cleaning scenario.

What We Like
High pressure for tough stains
Adjustable soap application
Multiple spray tips
Versatile water sourcing
#TOP 9

Le Hao Tool 4000 PSI Electric Power Washer

Orange
Le Hao Tool 4000 PSI Electric Power Washer Cover
Electric Power Washer 4000 PSI Max 3.5 GPM Pressure Washer with 25FT Hose, 4 Quick Connect Nozzle and 16.9 Oz Soap Tank Orange

The Le Hao Power Washer delivers exceptional cleaning power with its robust 1800 Watt motor, generating up to 4000 PSI at 2.5 GPM. This makes it perfect for tackling tough dirt and grime effortlessly. You can adapt your cleaning approach with four adjustable nozzles, allowing you to switch from high to low pressure based on your needs. The 25-foot hose and 16-foot power cord provide ample reach, making it easy to clean your vehicle or patio without hassle. With the Total Stop System, the pump automatically shuts off when not in use, saving energy and extending the pump's lifespan.

What We Like
High cleaning power
Adjustable pressure nozzles
Long reach hose and cord
Energy-saving system
#TOP 10

Karcher K1700 1700 PSI Electric Pressure Washer

1.106-109.0
Yellow
1.2 GPM
Karcher K1700 1700 PSI Electric Pressure Washer Cover
Kärcher Pressure Washer, Detergent Tank, Start/Stop Foot Switch, Onboard Storage Container, 3 Spray Nozzles, 1.46 GPM Max - for Cars, Decks, Patios, Driveways and Siding - K1700

The Karcher K1700 is a powerful electric pressure washer that delivers 1700 PSI of TruPressure and 1.2 GPM of water flow. It comes with a 20' kink-resistant high-pressure hose, an onboard detergent tank, and a removable storage bin for accessories. It also includes 3 quick-connect spray nozzles for versatile cleaning options. Customers have praised its performance and ease of use, though some have noted that the quick-connect nozzles must be securely attached to avoid losing the o-ring.

What We Like
Delivers 1700 PSI of TruPressure and 1.2 GPM of water flow
20' kink-resistant high-pressure hose and onboard detergent tank
3 quick-connect spray nozzles for versatile cleaning options
Backed by a 3-year limited warranty and rapid exchange program
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 10 quality products. We collected and analyzed 392,451 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 $149.35.

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, AgiiMan, PowerSmart, BLUBERY. The seller of top 1 product has received honest feedback from 385 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.