Best Categories with Soap Tank in 2026: 9 Picks Ranked by Specs
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This guide ranks the best categories with soap tank pressure washers by published specifications. You get nine models selected for their onboard detergent storage and cleaning performance. The Ezasin 3500 PSI Gas Pressure Washer leads this list because its 3500 PSI output and 2.3 GPM flow rate handle heavy-duty cleaning tasks efficiently. These picks are based strictly on the technical data found on each product listing. We compare power sources, pressure ratings, and tank features to help you decide which machine fits your specific outdoor maintenance needs.
Quick picks
The best fit for you
- You want the best overall pressure washer with soap tank Ezasin 3500 PSI Gas Pressure Washer It offers 3500 PSI and a soap tank for heavy-duty cleaning tasks.
- You need a gas unit with the highest flow rate Imdot 4200 PSI Gas Pressure Washer The 4.0 GPM flow rate and soap tank handle tough jobs efficiently.
- You want the most compact electric model with soap tank PowerSmart 3000 PSI Brushless Electric Its 35-pound weight and small dimensions fit tight storage spaces easily.
- You need a unit with a large soap tank for foam Westinghouse WPX3400SC Gas Pressure Washer The 1.6L soap tank and included surface cleaner suit large flat areas.
Our 9 picks
Ezasin 3500 PSI Gas Pressure Washer
Best for: heavy-duty cleaning with soap
- Features
- Soap Tank (what this guide is about)
- Maximum Pressure
- 3500 PSI
- Flow Rate
- 2.3 GPM
- Power Source
- Gas
- Engine Displacement
- 209cc
- Hose Length
- 25 ft
View on Amazon: Ezasin 3500 PSI Gas Pressure Washer Affiliate link
This gas pressure washer delivers 3500 PSI and 2.3 GPM. It includes a soap tank for tackling stubborn grime on siding, driveways, and vehicles. The 209cc engine powers an axial cam pump. You get four quick-connect nozzles and a 25-foot hose. It is built for homeowners who need heavy-duty cleaning power with a dedicated detergent application system.
Pros
- 3500 PSI maximum pressure
- 2.3 GPM flow rate
- Includes soap tank
- 25-foot high-pressure hose
- Four quick-connect nozzles
Cons
- Heavier at 58 pounds
- Recoil start only
- Axial cam pump type
Good fit if
- You need a soap tank for detergent application
- You want high pressure for heavy grime
- You prefer gas power for mobility
Skip if
- You require electric quiet operation
- You need an electric start
- You want a lighter unit
Verdict: Ezasin 3500 PSI Gas Pressure Washer fits users who need strong cleaning power and a dedicated soap tank for tough outdoor jobs. The high PSI and included hose make it suitable for large driveways and siding.
BILT HARD 3200 PSI Electric Pressure Washer
Best for: Users needing onboard soap storage
- Features
- Soap Tank (what this guide is about)
- Maximum Pressure
- 3200 PSI
- Flow Rate
- 1.7 GPM
- Power Source
- Electric
- Hose Length
- 25 ft
- Intended Use
- Cars, Homes, Driveways
View on Amazon: BILT HARD 3200 PSI Electric Pressure Washer Affiliate link
This BILT HARD unit delivers 3200 PSI and 1.7 GPM for effective surface cleaning. It features a 14-amp induction motor designed for quieter operation and longer life. The onboard soap tank holds 1.05 gallons for convenient detergent use. You get a 35-foot GFCI cord and a 25-foot hose for reach. It suits homeowners needing reliable electric power with built-in soap management.
Pros
- Onboard 1.05-gallon soap tank
- 14-amp induction motor for durability
- 5 quick-connect nozzles plus turbo
- 35-foot GFCI power cord
Cons
- 1.7 GPM flow rate is lower than gas competitors
- 52.2-pound weight adds bulk
- 25-foot hose limits reach compared to others
Good fit if
- You want built-in soap storage
- You prefer quieter induction motors
- You need GFCI safety for outdoor use
Skip if
- You require high flow rates over 2.0 GPM
- You need gas-powered mobility
- You want a hose longer than 25 feet
Verdict: BILT HARD 3200 PSI Electric Pressure Washer offers a practical balance of pressure and onboard soap storage for deck and driveway cleaning. It fits users who value quiet induction motors and safety features over raw flow rate.
Imdot 4200 PSI Gas Pressure Washer
Best for: Heavy-duty cleaning with high flow
- Features
- Soap Tank (what this guide is about)
- Maximum Pressure
- 4200 PSI
- Flow Rate
- 4.0 GPM
- Engine Displacement
- 212cc
- Hose Length
- 25 ft
- Nozzle Count
- 5
View on Amazon: Imdot 4200 PSI Gas Pressure Washer Affiliate link
This gas pressure washer delivers 4200 PSI and 4.0 GPM for heavy-duty cleaning. It includes a dedicated soap tank feature and five quick-connect nozzles. The 212cc engine powers the axial cam pump, while the 25-foot hose offers reach. You get a durable steel frame and large wheels for stability. This unit suits users needing high flow rates for large outdoor areas.
Pros
- High 4.0 GPM flow rate for fast rinsing
- Includes dedicated soap tank for chemical application
- Comes with five quick-connect nozzles for versatility
- 25-foot hose provides extended reach
- Durable powder-coated steel frame
Cons
- Heavy 60-pound build limits portability
- Recoil start requires manual effort
- Smaller 0.5-gallon fuel tank
Good fit if
- You need high water flow for large decks
- You want a dedicated soap tank included
- You prefer a durable steel frame
Skip if
- You need electric power sources only
- You require lightweight portability under 50 pounds
- You want electric recoil-free starting
Verdict: Imdot 4200 PSI 4.0 GPM Gas Washer offers exceptional flow and a soap tank for tough jobs. It fits users prioritizing cleaning power over easy transport.
WEN 3400 PSI 2.7 GPM Gas Pressure Washer
Best for: Gas users needing onboard soap storage
- Features
- Soap Tank (what this guide is about)
- Maximum Pressure
- 3400 PSI
- Flow Rate
- 2.7 GPM
- Power Source
- Gas
- Engine Displacement
- 223cc
- Hose Length
- 25-foot
View on Amazon: WEN 3400 PSI 2.7 GPM Gas Pressure Washer Affiliate link
This gas pressure washer delivers 3400 PSI and 2.7 GPM from a 223cc engine. It includes an onboard soap tank for cleaning tasks. The unit uses an axial cam pump and comes with five quick-connect nozzles. It weighs 73.7 pounds and features 12-inch never-flat wheels for transport. This model suits users needing moderate power with built-in detergent storage.
Pros
- 3400 PSI maximum pressure output
- 2.7 GPM flow rate
- Onboard soap tank included
- Five quick-connect nozzles
- 12-inch never-flat wheels
Cons
- Axial cam pump type
- 73.7 pounds weight
- 25-foot hose length
Good fit if
- You need an onboard soap tank
- You prefer gas-powered mobility
- You want five nozzle options
Skip if
- You require electric power
- You need higher than 3400 PSI
- You want a triaxial pump
Verdict: WEN 3400 PSI Gas Pressure Washer fits users who need moderate cleaning power and built-in soap storage. It offers reliable performance for standard residential jobs without requiring electric hookups.
PowerSmart 3000 PSI Brushless Electric
Best for: compact home cleaning with soap
- Features
- Soap Tank (what this guide is about)
- Maximum Pressure
- 3000 PSI
- Flow Rate
- 1.2 GPM
- Power Source
- Electric
- Nozzle Count
- 5
- Intended Use
- Cars, Patios, Driveways, Fences
View on Amazon: PowerSmart 3000 PSI Brushless Electric Affiliate link
This PowerSmart unit delivers 3000 PSI max pressure and 1.2 GPM flow for home cleaning tasks. It features a brushless induction motor for durability and includes a built-in detergent tank. The package provides five quick-connect nozzles and 8-inch wheels for mobility. You will find this electric model suitable for driveways, siding, and vehicles. Its compact design aids storage, while the included accessories cover most standard washing needs.
Pros
- 3000 PSI max pressure output
- Built-in detergent tank
- Brushless induction motor
- Includes five quick-connect nozzles
- 8-inch wheels for mobility
Cons
- 1.2 GPM flow rate is lower than competitors
- 35-pound weight is moderate for an electric unit
- No high-pressure surface cleaner included
Good fit if
- You need a compact electric washer for home use
- You want a built-in soap tank for detergents
- You clean driveways, siding, and vehicles
Skip if
- You require high flow rates above 2.0 GPM
- You need gas power for heavy commercial jobs
- You want a high-pressure surface cleaner included
Verdict: PowerSmart 3000 PSI Electric Washer offers a compact, detergent-ready solution for homeowners. It fits those who prioritize motor durability and storage space over high flow rates.
Toyqqeow 4200 PSI 212cc Gas Pressure Washer
Best for: High-pressure cleaning with built-in soap storage
- Features
- Soap Tank (what this guide is about)
- Maximum Pressure
- 4200 PSI
- Flow Rate
- 2.8 GPM
- Power Source
- Gas
- Engine Displacement
- 212 cc
- Hose Length
- 25 ft
View on Amazon: Toyqqeow 4200 PSI 212cc Gas Pressure Washer Affiliate link
This gas-powered unit delivers 4200 PSI and a 2.8 GPM flow rate. It includes a 0.5-gallon onboard soap tank for detergent application. The 212cc engine provides consistent power for tough jobs. You get five quick-connect nozzles and a 25-foot hose. It suits users needing high pressure and built-in soap storage for driveways or decks.
Pros
- 4200 PSI maximum pressure for heavy cleaning
- 0.5-gallon onboard soap tank
- Five quick-connect nozzles included
- 25-foot high-pressure hose
Cons
- 2.8 GPM flow rate is lower than some competitors
- 60-pound weight requires effort to move
- No mention of a surface cleaner attachment
Good fit if
- You need high pressure for stubborn grime
- You want built-in soap tank convenience
- You clean large outdoor surfaces
Skip if
- You prefer lightweight electric models
- You need a surface cleaner included
- You want a higher flow rate
Verdict: Toyqqeow 4200 PSI Gas Pressure Washer offers strong cleaning power and a built-in soap tank for users tackling tough outdoor jobs. It fits those who prioritize pressure and detergent convenience over maximum flow rate.
Westinghouse WPX3400SC Gas Pressure Washer
Best for: Foam cleaning and large flat surfaces
- Features
- Soap Tank (what this guide is about)
- Maximum Pressure
- 3400 PSI
- Flow Rate
- 2.6 GPM
- Power Source
- Gas
- Engine Displacement
- 212cc
- Hose Length
- 25 ft
View on Amazon: Westinghouse WPX3400SC Gas Pressure Washer Affiliate link
The Westinghouse WPX3400SC is a gas pressure washer delivering 3,400 PSI and 2.6 GPM. It includes a 15-inch surface cleaner and a 1.6L onboard soap tank for foam application. The 212cc engine powers the axial cam pump. This unit suits users needing heavy-duty cleaning for driveways and patios. The included hose and nozzles allow for immediate use. Its dimensions are 18.5 by 19 by 21.7 inches.
Pros
- 1.6L onboard soap tank for foam cleaning
- Includes 15-inch surface cleaner attachment
- 212cc engine provides 3,400 PSI
- 25-foot abrasion resistant hose included
Cons
- Heavier at 70 pounds
- Lower flow rate of 2.6 GPM
- No mention of electric start capability
Good fit if
- You need a dedicated soap tank for foam cleaning
- You want a surface cleaner included in the box
- You prefer gas power for heavy debris
Skip if
- You require a high flow rate above 2.6 GPM
- You need an electric start system
- You prefer a lighter unit under 70 pounds
Verdict: Westinghouse WPX3400SC Gas Pressure Washer fits buyers who prioritize foam cleaning and surface cleaning efficiency. The 1.6L soap tank and 15-inch cleaner make it ideal for large, flat outdoor areas.
Greenworks 2000 PSI Electric
Best for: convenient car washing with included soap
- Features
- Soap Tank (what this guide is about)
- Maximum Pressure
- 2000 PSI
- Flow Rate
- 1.2 GPM
- Power Source
- Electric
- Hose Length
- 25 ft
- Intended Use
- Cars
View on Amazon: Greenworks 2000 PSI Electric Affiliate link
This Greenworks unit delivers 2000 PSI and 1.2 GPM for car washing tasks. It features an on-board soap tank that automatically draws detergent when you switch to the soap tip. The package includes 12 pre-measured Orchard Pear scent pods, eliminating guesswork. You get a 25-foot kink-resistant hose, multiple nozzle tips, and 8-inch wheels for easy transport. Independent lab testing verifies the pressure and flow claims.
Pros
- On-board soap tank for automatic detergent application
- Includes 12 pre-measured eco-friendly soap pods
- Independent lab verified 2000 PSI and 1.2 GPM specs
- 8-inch wheels for easy transport between projects
Cons
- Lower 1.2 GPM flow rate compared to gas competitors
- Electric power source limits mobility without outlets
- 2000 PSI is lower than many other picks on this list
Good fit if
- You need a dedicated car washing setup with included soap
- You prefer electric power for quieter, zero-emission operation
- You want verified pressure specs from independent lab testing
Skip if
- You require high flow rates for large surfaces
- You need to wash areas without electrical access
- You want maximum pressure for heavy commercial jobs
Verdict: Greenworks 2000 PSI Electric is a practical choice for homeowners who prioritize convenience and verified specs for vehicle maintenance. The integrated soap tank and included pods streamline the washing process, making it ideal for regular car care rather than heavy-duty cleaning.
PowerSmart 3200 PSI 2.5 GPM Gas Pressure Washer
Best for: Homeowners needing onboard soap for standard cleaning
- Features
- Soap Tank (what this guide is about)
- Maximum Pressure
- 3200 PSI
- Flow Rate
- 2.5 GPM
- Power Source
- Gas
- Engine Displacement
- 208cc
- Hose Length
- 25-foot
View on Amazon: PowerSmart 3200 PSI 2.5 GPM Gas Pressure Washer Affiliate link
This gas pressure washer delivers 3200 PSI and 2.5 GPM for residential cleaning tasks. It features a 208cc engine and an onboard 0.8-gallon soap tank. The unit includes a 25-foot hose and five nozzle tips. You will find it suitable for decks, patios, and car washing. The compact design with pneumatic tires aids maneuverability on uneven ground.
Pros
- 3200 PSI maximum pressure output
- 2.5 GPM flow rate for faster rinsing
- Onboard 0.8-gallon soap tank for detergent application
- 25-foot abrasion-resistant hose included
- Five quick-connect nozzle tips for varied cleaning needs
Cons
- Axial cam pump type is less durable than triplex pumps
- 0.8-gallon soap tank capacity is small for large jobs
- 208cc engine displacement is lower than some competitors
Good fit if
- You need a soap tank for applying detergent to surfaces
- You want a gas-powered unit with moderate pressure for home use
- You prefer a compact machine with pneumatic tires for easy transport
Skip if
- You require a high-flow rate above 2.5 GPM for commercial work
- You need a triplex pump for extended professional durability
- You are looking for a model with a larger onboard soap tank
Verdict: PowerSmart 3200 PSI Gas Washer with Soap Tank fits homeowners who need a compact gas unit with a built-in detergent tank for standard cleaning tasks. It is not ideal for users requiring high flow rates or commercial-grade pump durability.
Specifications side by side
| Spec | Ezasin 3500 PSI Gas Pressure Washer | BILT HARD 3200 PSI Electric Pressure Washer | Imdot 4200 PSI Gas Pressure Washer | WEN 3400 PSI 2.7 GPM Gas Pressure Washer | PowerSmart 3000 PSI Brushless Electric | Toyqqeow 4200 PSI 212cc Gas Pressure Washer | Westinghouse WPX3400SC Gas Pressure Washer | Greenworks 2000 PSI Electric | PowerSmart 3200 PSI 2.5 GPM Gas Pressure Washer |
|---|---|---|---|---|---|---|---|---|---|
| Maximum Pressure | 3500 PSI | 3200 PSI | 4200 PSI | 3400 PSI | 3000 PSI | 4200 PSI | 3400 PSI | 2000 PSI | 3200 PSI |
| Flow Rate | 2.3 GPM | 1.7 GPM | 4.0 GPM | 2.7 GPM | 1.2 GPM | 2.8 GPM | 2.6 GPM | 1.2 GPM | 2.5 GPM |
| Power Source | Gas | Electric | not stated | Gas | Electric | Gas | Gas | Electric | Gas |
| Engine Displacement | 209cc | not stated | 212cc | 223cc | not stated | 212 cc | 212cc | not stated | 208cc |
| Hose Length | 25 ft | 25 ft | 25 ft | 25-foot | not stated | 25 ft | 25 ft | 25 ft | 25-foot |
| Nozzle Count | 4 | not stated | 5 | not stated | 5 | 5 | 5 | not stated | 5 |
| Pump Type | Axial cam | not stated | Axial cam | Axial cam | not stated | not stated | Axial cam | not stated | axial cam |
| Pressure | 3500 PSI | 3200 PSI | 4200 PSI | 3400 PSI | not stated | 4200 PSI | 3400 PSI | 2000 PSI | 3200 PSI |
| Intended Use | not stated | Cars, Homes, Driveways | not stated | not stated | Cars, Patios, Driveways, Fences | Cars, Driveways | Cars, Patios, Homes, Driveways, Fences, Furniture | Cars | Cars, Homes, Driveways, Fences |
| Features | Soap Tank | Soap Tank | Soap Tank | Soap Tank | Soap Tank | Soap Tank | Soap Tank | Soap Tank | Soap Tank |
| Color | Blue | Blue | Black | Black | Black | Black | Blue | not stated | Black |
| Dimensions | 17.5 × 22.5 × 34.5 inches | 1 × 1 × 1 inches | 23 × 17 × 22 inches | 21 × 21.5 × 25.8 inches | 14.2 × 13.4 × 20.9 inches | 20 × 16 × 22 inches | 19 × 18.5 × 21.7 inches | not stated | 21.3 × 19.1 × 22.4 inches |
| Weight | 58 pounds | 49 pounds | 60 pounds | 73.7 pounds | 35 pounds | 60 pounds | 70 pounds | not stated | not stated |
| Size | 3500 PSI | 3200 PSI | not stated | not stated | not stated | not stated | not stated | 2000 PSI+Wash Pods | not stated |
| Model | EAPW05 | THA-0362 | YGA36 | PW224G | DB1002 | GA001 | WPX3400SC | not stated | DB1051 |
If you compare reservoir capacity across different appliances, you can evaluate specs for the best dishwashers with water tank.
Key Specs for Soap Tank Washers
-
Choose Power Source First
Decide between gas and electric before comparing other specs. Gas models like the Ezasin 3500 PSI offer mobility and higher power for large driveways. Electric units like the BILT HARD 3200 PSI are quieter and require no fuel storage. Pick gas for heavy outdoor jobs away from outlets. Choose electric for patios or decks near a power source. Your garage space and noise tolerance determine this choice.
-
Match Pressure to Job
PSI indicates cleaning force. Higher PSI removes stubborn grime faster. The Im dot 4200 PSI model handles tough stains on concrete. Lower PSI units like the Greenworks 2000 PSI are safer for cars and delicate surfaces. Avoid high pressure on soft wood or painted siding. Select the lowest PSI that cleans your specific material effectively. This prevents damage while saving detergent and time.
-
Check Flow Rate for Speed
GPM determines how quickly water rinses away dirt. High flow rates clean larger areas faster. The Im dot 4200 PSI washer delivers 4.0 GPM for rapid rinsing. Lower flow units like the PowerSmart 3000 PSI at 1.2 GPM are slower but sufficient for small tasks. If you clean large driveways, prioritize higher GPM. For small patios, lower GPM saves water and energy.
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Count Nozzles for Versatility
Nozzle count affects surface compatibility. Most models include five nozzles for different spray angles. The BILT HARD and Im dot units both provide five options. More nozzles allow you to adjust spray width without changing equipment. Check if the set includes a zero-degree tip for spot cleaning. Ensure the tips are color-coded for easy identification. This feature simplifies switching between delicate and tough surfaces.
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Verify Soap Tank Size
Onboard tanks offer convenience but vary in capacity. The Westinghouse WPX3400SC features a 1.6L tank for extended foam cleaning. Smaller tanks require frequent refilling during large jobs. Check if the tank connects directly to the detergent inlet. Some models need a separate siphon tube. A larger built-in tank reduces interruptions. Verify the tank material is durable and resistant to corrosion from chemicals.
Frequently asked questions
Which pressure washer has the highest flow rate with a soap tank?
The Imdot 4200 PSI Gas Pressure Washer offers the highest flow rate at 4.0 GPM. This specification allows for faster rinsing of large areas. It also includes a soap tank for applying detergent before rinsing. The unit weighs 60 pounds and features a black finish. Its 4200 PSI output provides strong cleaning power for tough outdoor jobs.
What is the lightest pressure washer with a built-in soap tank?
The PowerSmart 3000 PSI Brushless Electric model is the lightest option at 35 pounds. It is designed for compact home cleaning tasks. The unit includes a soap tank and five nozzles. Its electric power source makes it quieter than gas models. It measures 13.4 inches wide and 20.9 inches tall for easy storage.
Which gas pressure washer includes a soap tank and five nozzles?
Several gas models include both a soap tank and five nozzles. The Toyqqeow 4200 PSI unit features these specs along with a 212cc engine. The Westinghouse WPX3400SC also provides five nozzles and a soap tank for foam cleaning. Both units offer high pressure for driveways and patios. The Toyqqeow weighs 60 pounds, while the Westinghouse weighs 70 pounds.
Does the Greenworks 2000 PSI model have a soap tank?
Yes, the Greenworks 2000 PSI Electric pressure washer includes an integrated soap tank. It is designed for convenient car washing with included wash pods. The unit operates at 1.2 GPM and 2000 PSI. It is intended specifically for cars rather than heavy-duty cleaning. The electric motor ensures quiet operation for residential use.
Which pressure washer is best for large flat surfaces with foam?
The Westinghouse WPX3400SC Gas Pressure Washer is ideal for foam cleaning on large flat surfaces. It features a 1.6L soap tank for ample detergent storage. The unit includes a 15-inch surface cleaner for efficient cleaning. It produces 3400 PSI and is suitable for driveways and patios. The blue unit weighs 70 pounds and includes five nozzles.
What is the difference between the Ezasin and BILT HARD soap tanks?
Both models include a soap tank for onboard detergent storage. The Ezasin 3500 PSI is a gas unit with 2.3 GPM flow. The BILT HARD 3200 PSI is an electric model with a quieter induction motor. The Ezasin weighs 58 pounds, while the BILT HARD weighs 52.2 pounds. Choose the Ezasin for higher power or the BILT HARD for electric convenience.