10 Best foam cannon in 2023

A best foam cannon is a device used to blast streams or jets of foamy water, usually mixed with soap and coloring. In the simplest terms, a foam cannon is a pressure vessel that uses pressurized air to produce bursts of mass amounts of bubbles. The foamy water jets are emitted from its opening at a high velocity and pressure. Besides These properties make it dangerous for children when not in the hands of an experienced user.


what is the best foam cannon ?

There are many different models of most foam cannons readily available online. The best foam cannon that you can buy is water air compressors. This type of gun is primarily used to spray water onto vehicles by attaching it to a compressed air hose. An airbrush hookup will work with this type of foam cannon as it can spray fine mist and paint at the same time. Make sure the Foam Cannon is adjustable for fine mist and not just a wider blast of water so that you get the best coverage possible.

especially;  Foam cannons are used with a variety of different shampooing techniques. The best foam cannon for your car really comes down to personal preference and the type of vehicle you are washing. Back in the early days of car washes, foaming was used as a way to try and keep the dirt in suspension so it could be washed off with a minimum of water. This is no longer the case.

How to care for your foam cannon ?

It is very important to make sure you do not let your foam cannon get too low on shampoo or soap. If you don’t fill the tank up, it will eventually start to leak and can cause a hazard due to the fact that some of the soap or shampoo that goes into the wash water will end up in your carpet and if it gets too low, it can become too diluted. Keep your air compressor filled up and ready for use. Also, for safety reasons, do not stand anywhere near where bubbles are coming from. Your foam cannon should be used with high quality professional grade car shampoo only. Do not mix any other products with it or it may damage your gun.

Buying guide: what to look for when buying the best foam cannon

Now that you have decided foam cannons are the best choice for your car wash, which one should you buy? There are a lot of different models to choose from and it’s easy to be overwhelmed. We’ve included a buying guide below to help you make an informed decision.


Foam Cannon Pressure gauge: This is just a simple air pressure gauge that allows you to regulate the amount of air pressure going into the cannon. The higher the number on this gauge, the more pressure is delivered.

Air Compressor: Go with a compressor that is powerful but also has a smaller tank. It will be easier to store and handle. The best foam cannon for your car needs to have enough power to produce the amount of foam you need, but not so much that it’s too heavy for you to carry around with you when traveling.

Pistol Grip for Trigger: This is the trigger that releases the compressed air and shoots out the bubbles. It should be comfortable and easy to use.

Tank Size: Depending on the size of your car and the amount of foam you are using, will determine on the size tank you should be looking for. If you are using a high volume of foam, then you might need to have a more powerful compressor. On the other hand, if your car is small and only needs a small amount of foam to wash, you can get away with having a smaller tank.

Gun Shape: There are two main shapes for foam cannons; pistol grip and backpack.

Pistol Grip Foam Cannon: This is the most widely used and the most common type of foam cannon. They are very easy to use and widely available. The pistol grip holds the gun upright when not in use so it is easier to store and handle. The trigger is held by one hand so that your other arm can be free to wash off the car, while having one hand on the gun itself.


Backpack Foam Cannon: These foam cannons originated from professional car washes and are particularly appropriate for bigger cars. They can get quite heavy, but they also hold a large amount of foam. The backpack design means that the gun is carried over the shoulder and not held upright. This makes it much easier to move around with, but can also make it a little more difficult to store, particularly if you are going to be living in one place for some time.

Cleaning Power: The cleaning power of your foam cannon will depend on the type of car wash you are using it for. If you are washing a sports car or if the paintwork is quite delicate, then you might need to look for a model that has more cleaning power.

10 Best foam cannon for pressure washer

1. MJJC Snow Foam Lance for Karcher K2 – K7 Foam Cannon Foam Gun for Karcher K Series foam cannon

best foam cannon MJJC Snow Foam Lance for Karcher K2 - K7 Foam Cannon Foam Gun for Karcher K Series foam cannon

Foam cannons are generally used for cleaning sidewalks/driveways , cars, boats/boatshacks, tile and stone walkways, patios, pool decks, roofs and more. They are also used with chemicals to remove sludge from engines.

You can get foam lances with various chemicals such as soap or detergent that are added to create a foam to clean the area being cleaned. The lance is attached to the end of a pressure washer wand that attaches onto a drum or hose in the pressure washer.

Wintertime can be a messy time in your vehicle and at your house.

You will likely find yourself dealing with dirt, ice, snow and grime that you’ve collected while out on the roads. however; The MJJC Snow Foam Lance is perfect for getting rid of all of this schmutz in just a few minutes. It has a foam powder that creates a chemical reaction when you spray water over it to produce lances of foam up to 6 feet long.


  • Snow foam lance for Karcher K2 – K7.
  • Foam cannon foam gun.
  • For car cleaning.
  • Pressure washer accessory.
  • Makes cleaning your car easier.
  • Saves time and effort.
  • Gives you a perfect clean.
  • Highly recommended.
  • Easy to use.
  • Good value for money.
  • Works well .
  • 5L capacity.
  • Comes with a bottle of MJJC Snow Foam.
  • 1-year warranty.
  • Some users have reported issues with the quality of the foam.
  • The nozzle can be difficult to clean.

2. Chemical Guys ACC_326 – Torq Foam Blaster 6 Foam cannon with Wash Gun

best foam cannon Chemical Guys ACC_326 – Torq Foam Blaster 6 Foam cannon with Wash Gun

There are a lot of different foam cannons on the market, so it can be tough to decide which one is the best for you. If you’re looking for a top-quality foam cannon that will give you great results, then the best foam cannon is the one from Foamaster. This cannon is made from durable materials and is designed to give you a professional-grade clean. It comes with a variety of accessories, including a nozzle adapter, to help you get the most out of your foam cannon.

The Foamaster professional ACC_326  foam cannon is a great choice for anyone who needs to wash vehicles by hand. It works with any standard garden hose, and provides a consistent stream of foam to loosen contaminants. It’s easy to install and use, and produces the thick suds you expect from professional-grade detailing products. This cannon features a pistol grip that allows you to hold it securely as you work, reducing fatigue so you can focus on your job.

This Foamaster professional foam cannon solves many of the problems associated with its competitors.

This sturdy tool is made from high-impact durable plastic, which makes it strong and lightweight. Plastic is also durable and doesn’t scratch or mar car finishes. The ergonomic pistol grip handle allows you to hold the cannon securely, reducing fatigue. Foamaster’s slick nozzle ensures that your foam comes out in a steady stream, instead of as a dribble. This foam cannon features an over-sized check valve to prevent backflow when the trigger isn’t engaged.


  • Product Dimensions: 9.09 x 5.51 x 5.39  inches 
  • Item Weight: ‎1.35 pounds 
  • Manufacturer: Chemical Guys 
  • Domestic Shipping: Item can be shipped within U.S. 
  • Works with any pressure washer.
  • 1 or 2 gallon foam cannon.
  • Adjustable air control.
  • Soap dispenser.
  • Durable construction.
  • Excellent customer service.
  • Can be difficult to clean.
  • Soap can sometimes leak.

3. Griot’s Garage BF302 The BOSS Foam Cannon

best foam cannon Griot's Garage BF302 The BOSS Foam Cannon

Every vehicle deserves a show car shine, regardless of the make or model. The BOSS  Foam Cannon was designed to improve your wash results with just one pass. It uses Grit Guard  technology to trap dirt and grime in the wash media where it can do no harm. In addition, it provides a thick blanket of lubricating suds that will not dry out, scratch paint or leave wax behind. One quick pass using a high-quality shampoo and you’ll be amazed at how much cleaner your vehicle is!

When you buy your favorite vehicle, chances are you want to be proud of it. Yet, the average vehicle owner spends at least half an hour washing his or her pride and joy. This time can be greatly reduced with a high-quality foam gun .

The BOSS Foam Cannon is the result of over many years’ experience in using safe and effective foam technology. It is capable of producing high quality foam that gently removes dirt and grime, even thick dirt and mud. The highly concentrated formula will not damage your vehicle’s finish, rather it cleans thoroughly without scratching or causing swirl marks.

The BOSS Foam Cannon enhances the wash results with just one pass! It will give you that show car shine in record time with no swirl marks or scratches. The combination of Grit Guard technology, thick lubricating suds and premium grade cleaning agents is unsurpassed.


  • Durable construction for long lasting performance
  • 1/4″ quick connect fitting for fast and easy setup
  • Maximum pressure: 3000 PSI
  • Maximum flow rate: 5 GPM
  • Minimum flow rate: 2.5 GPM
  • Weight: 1.75 pounds
  • Dimensions: ‎9 x 5 x 7.5 inch.
  • Easy to use.
  • Good quality.
  • Affordable.
  • Versatile.
  • Durable.
  • Good customer service.
  • Can be difficult to clean.
  • Nozzle can be difficult to adjust.

4. MTM Hydro 28 Special Foam Cannon and Spray Gun

best foam cannon MTM Hydro 28 Special Foam Cannon and Spray Gun

MTM Hydro 28 Foam Cannon is a foam cannon with high-quality and an affordable price, it provides a perfect solution for the professional detailer looking for a high performance tool to complement their detailing regimen. With smart details and superior craftsmanship, MTM Hydro 28 Foam Cannon is made to achieve flawless cleaning results on every car surface.

MTM Hydro 28 Special Foam Cannon & Spray Gun is the most advanced, high-quality foam cannon on the market. It’s made to last, simple to use and it works better than any other product of its kind.

MTM Hydro 28 Special Foam Cannon & Spray Gun is a complete detailing system that gives you the edge in removing dirt, grime and contaminants from paintwork and wheels. The MTM Hydro 28 Special Foam Cannon & Spray Gun is designed for professional use by the auto detailing experts. It’s a complete detailing system that works perfectly with any premium quality car shampoo or soap.

Aside from its high performance this Spray Gun is very easy to use. You can effortlessly clean your car using it for a minute. The options for moving the device are numerous. You can move it up, down or both left and right, making it a versatile workhorse that you won’t get tired of using. Overall; The MTM Hydro 28 Special Foam Cannon & Spray Gun has excellent foam output, which means it will be able to cover more area with each use.


  • Works with standard pressure washer up to 3,500 PSI.
  • Maximum pressure: 250 bar 3,625 PSI.
  • Maximum flow rate: 15 L/min 1.60 GPM on avg.
  • Maximum temperature: 60°C (140°F) on avg.
  • Weight: 3.54 pounds.
  • Dimensions: 11.34 x 6.57 x 6.18 inch.
  • Quick connect fittings: M22 x 1.5 .
  • Hose length: 10 m (33 ft).
  • Power cord length: 5 m (16.4 ft).
  • Easy to use.
  • Good quality.
  • Affordable.
  • Good customer service.
  • Fast shipping.
  • Easy to assemble.
  • Nozzle can be difficult to remove.
  • Instructions could be more clear.

5. MJJC Foam Lance 1/4 Quick Connect Foam Cannon with One Quarter Quick Connection

best foam cannon MJJC Foam Lance 1/4 Quick Connect Foam Cannon with One Quarter Quick Connection

The MJJC Foam Cannon is designed to produce thick foam that you can use on your car, truck, boat or RV. This foam cannon will allow you to clean your vehicle faster and easier than ever before. It has a self-pressurizing system that blasts out the thickest foam possible with little effort and all the equipment you need is included in this package!

The MJJC Foam Cannon is the most convenient, efficient and easy-to-use foam cannon. It comes with a quick connection line that allows you to quickly connect your air compressor and spray nozzle together, which saves you time. It also has an adjustable spray fan that lets you create thick foam and even adjust it to the size of your vehicle or purpose. You can also use this for shampooing, car washing, window cleaning and more.

This MJJC Foam Cannon is easy to use and comes with a manual that contains all the information you need. All you have to do is connect your nozzle to the foam cannon using the quick-connect, then connect your air compressor to the cannon. It only takes seconds to fully pressurize and start cleaning your vehicle.


  • 1/4 quick connect.
  • fits most pressure washers.
  • works with standard pressure washer tips.
  • max pressure: 3600 PSI.
  • 7.09 x 5.51 x 5.51 inch.
  • max flow rate: 1.65 GPM.
  • adjustable nozzle.
  • includes one quick connect adapter.
  • easy to use.
  • made of durable materials.
  • easy to clean.
  • Foam gun is comfortable to hold.
  • Foam gun is lightweight.
  • with a one-quarter quick connection.
  • the price little bit high.
  • not sure how long it will last.

6. Chemical Guys EQP_310 TORQ Professional Foam Cannon

best foam cannon Chemical Guys EQP_310 TORQ Professional Foam Cannon

Let’s face it, Surface areas can get super dirty. When it comes to a vehicle’s exterior, only the best wash products will do. Chemical Guys TORQ Professional Foam Cannon has been specifically designed to deliver premium foam that can effectively cleanse dirt and grime on larger surfaces. The TORQ Professional Foam Cannon generates thick and rich suds that cling to the dirt to fully break down and lift residues from surfaces. It is the perfect upgrade to a standard hose and spray nozzle and is safe for wheels, paint, glass and plastic. With the TORQ Professional Foam Cannon all you need is a water source, Chemical Guys car wash soap and you are ready to clean any vehicle large or small.

The TORQ Professional Foam Cannon uses Chemical Guys suds management technology to distribute and dispense foam onto surfaces. This technology helps the user accurately target and track the suds. The TORQ Professional Foam Cannon has a large 10.31 x 5.51 x 5.12 inches. In addition, the TORQ Professional Foam Cannon is also equipped with an adjustable stainless steel nozzle that maximizes foam performance when washing any vehicle large or small.


  • fluid tank with quick release
  • Adjustable air flow and soap flow
  • Maximum pressure: 3500 PSI
  • Minimum pressure: 800 PSI
  • Weight: 1.5 pound
  • Dimensions: ‎10.31 x 5.51 x 5.12 inch.
  • Connector: 1/4″ quick release
  • Easy to use.
  • Good quality.
  • Affordable.
  • Sturdy.
  • Adjustable nozzle.
  • Good value.
  • Can be difficult to clean.
  • Not as durable as some other brands.

7. Sun Joe SPX-FC34-PRO Foam Cannon for SPX Series

best foam cannon Sun Joe SPX-FC34-PRO Foam Cannon for SPX Series

Sun Joe SPX-FC34-PRO Foam Cannon is compatible with most pressure washers and high-powered, this soap cannon delivers an adjustable spray pattern and is made of top quality plastics. It’s perfect for commercial, industrial, and residential use. It includes a nozzle with a detergent dial and a large-capacity 34-ounce (0.94-liter) tank that allows you to spray detergent and soap for longer periods of time. The bottle of soap fits into a space on the top of the cannon. The soap and water mix as the pressure washer sprayer runs.

You can adjust the spray pattern simply while the pressure washer is running. It has a 13 x 10 x 4 inches  nozzle hole, and it’s excellent for cleaning siding, decks and vehicles. The cannon has two nozzles: one for soap, one for water. The soap nozzle uses a detergent dial to control the amount of soap used for different tasks — low for washing cars or high for scrubbing caked-on dirt from sidewalks or driveways.


  • 34 fl oz capacity.
  • 1/4″ quick connector.
  • For use with SPX series electric pressure washers.
  • 5 pressure settings.
  • Adjustable nozzle.
  • Soap reservoir.
  • Onboard storage.
  • Ergonomic handle.
  • psi: max – 3600
  • gpm: max – 1.76
  • Quick connector.
  • Easy to use.
  • Good value.
  • Works well
  • Durable.
  • Easy to clean.
  • Cannot use with hot water.
  • Soap reservoir is small.

8. Tool Daily Foam Cannon with 1/4 Inch Quick Connector

best foam cannon Tool Daily Foam Cannon with 1/4 Inch Quick Connector

The Tool foam cannon is the most premium, high performance, lightweight and durable foam cannon because it has been our top another picks. It has an easy on/off switch which is activated by the trigger. The switch is a safety feature which will prevent the foam cannon from being activated when the handle is not in the on position.

It comes with a 1/4-inch quick connect nozzle and an adapter for 1.5mm tips. The 1.1mm small orifice foam tip is included inside the barrel of the tool, which allows to make foam at higher pressures than its competitors in the market. The Tool foam cannon has a high quality spring action trigger to release the pressure from the dispensing tool when it is ready for use.

A quick connect nozzle is compatible with a wide range of foam guns. It is designed to spray foam in an accurate, controlled manner.

The tool comes with a professional carry pouch to carry it when not in use. The Tool foam cannon is made of high quality materials and has a dimension of 22 x 7 x 11 inches.


  • 0.25 Inches Outside Diameter
  • nozzle size – 1.1 mm.
  • quick connector – 1/4 inch.
  • maximum pressure – 3000 psi.
  • maximum temperature – 212 degrees Fahrenheit.
  • detergent bottle capacity – 1 Liter / 0.22 Gallon
  • weight – 1.37 pounds.
  • Quick connector for easy attachment.
  • Made of high quality materials.
  • Ideal for car washing.
  • Comes with a 1-year warranty.
  • Can be used with any pressure washer.
  • 1.1 mm orifice for a powerful foam spray.
  • Can’t use with hot water pressure washers.
  • Some people find the foam cannon difficult to use.

9. Torq EQP323 Snow Foam Blaster R1 Foam Gun

best foam cannon Torq EQP323 Snow Foam Blaster R1 Foam Gun

Foam Cannon works with pressure washers. Soak your car, truck, ATV, or boat in a thick layer of foam. The Foam Cannon is the easy way to give your vehicle a spa treatment. The included 32 oz. a canister of Torque snow foam wash concentrate with our unique soap technology works great for all-season cleaning, especially in cold weather. Foam Cannon’s patent pending quick connect system attaches easily to your pressure washer, so you won’t have to constantly switch nozzles. And the Foam Cannon’s solid brass connectors ensure a tight seal for optimal performance. Torque Foam Cannon is constructed from high quality plastics that resist cracking and fading from exposure.

The foam cannon has a pressure washing system. You can clean your vehicle with ease and precision. The soap can spray with great force for maximum penetration and lubrication. You will be surprised when you see the foam generated by the foam cannon, you may think that it is snowing. It is so thick, it coats every inch of your car and makes washing easier than ever before.


  • max temp: 30 degrees C
  • maximum flow rate: 8 L/min
  • maximum pressure: 100 bar
  • maximum temperature: 30 degrees C
  • maximum water flow rate: 8 L/min
  • max psi -2000
  • weight: 1 pound
  • 8.25 x 8.25 x 7 inch.
  • car Shampoo.
  • Foam Gun.
  • Snow Foam.
  • Foam Blaster.
  • Foam Lance.
  • Snow Foam Cannon.
  • Heavy.
  • Short Hose.

10. Chemical Guys EQP324 Big Mouth Max Release Foam Cannon

best foam cannon Chemical Guys EQP324 Big Mouth Max Release Foam Cannon

Upgrade your detailing game to the next level with Chemical Guys EQP324 Big Mouth Max Foam Cannon. Designed to help your foam cannon blast more foam and create more suds in one pass, this red cannon and bezel combo gives you the ability to work more effectively. The Foam Cannon Big Mouth Max Release from Chemical Guys is made from durable materials and will last for years, even with heavy use. The system releases foam with a push of a button. This means you don’t have to worry about mixing the proper ratio or cleaning up messes. The internal design of this foam cannon allows for easy soap or shampoo filling, so you can be ready for jobs quickly.

The large mouth makes it easy to load soap, shampoo and other cleaning agents in the foam cannon. The Foam Cannon Big Mouth Max Release fills up just a little bit more than the previous model, so you can use less chemicals with each pass, resulting in less waste and fewer passes between washes. This makes your cleaning process more efficient and allows for quicker jobs.


  • Product dimensions: 10 x 8.15 x 4.37 inches
  • Item Weight: 1.87 pounds
  • Manufacturer: Chemical Guys
  • Item model number: EQP324
  • Max pressure: 2000 PSI
  • Max flow rate: 5 GPM
  • Temperature: 140°F / 60°C
  • Adjustable air intake: Yes
  • Adjustable foam nozzle: Yes
  • Soap bottle: Yes
  • Easy to use.
  • Works great.
  • Good value.
  • Easy to clean.
  • Durable.
  • Good quality.
  • Can be difficult to refill.
  • Can be difficult to aim.

What are the benefits of using a foam cannon ?

When used properly a foam cannon can be a great asset in the car washing projects. You can actually get the job done quicker than you could with just a hose, and it will definitely do an extremely better job.

7 benefits of using a foam cannon:

1. Foam cannons work by producing a large amount of tiny bubbles that adhere to oil, dirt and grime. That means your wash water will be able to lift more dirt off your car than just with water alone. It can also increase the efficiency of your washing soap as well since the soapy bubbles will be able to touch a larger surface area.

2. The second benefit is that foam cannons are calibrated to produce just enough bubbles to give you a good wash while not wasting too much water. And since it’s a compressed air system, you won’t have to worry about using up too much water when using a foam cannon.

3. A foam cannon offers a degree of versatility that other methods don’t have. That’s why it is one of the best methods out there for car washes and quick detail work on vehicles.

4. Another benefit to using a foam cannon is that you don’t have to worry about excess foam dripping down the sides of your vehicle because it’s a compressed air system. You also won’t have to worry about being hit in the head with any water that is expelled from the hose.

5. Foam cannons are one of the most efficient ways to wash your car; this works especially when you’re working on dirtier cars like SUVs or trucks.

6. Another benefit of using a foam cannon is that it’s very easy to clean up when it is time to switch to another vehicle in the lineup.

7. The final benefit of using a foam cannon is that you can use it to wash also motorcycles as well.

Do I Need Special Soap for a Foam Cannon ?

No, you don’t have to use special soap for your foam cannon. You can use any soap that you want. We use Squeaky Clean or Brasso but there are many other brands as well. If you don’t want to buy pre-filled soap and make your own, another option is to purchase a Foam Cannon Booster. The Foam Cannon Booster is a small device which plugs into the end of your foam cannon hose and reduces the amount of soap that comes out of the foam cannon nozzle.

Tips for using a foam cannon

Get the right mix of water and soap – You will need to experiment a bit when it comes to finding the right mix. Too much soap will cause the foam to break up too easily and not give you a good lather. If the foam is too thin, then it won’t do much good.

Always pull the trigger slowly – Never pull the trigger quickly, as this will cause the foam cannon to spray out too fast. The right approach is to start with low pressure and then gradually increase it to achieve the perfect amount of foam that your car requires.

Take your time – Do not expect your car to be completely clean straight away. It will take a little time and effort to scrub off all of that dirt. Start by spraying off everything with a hose, before you start foaming up.

Combine the foam with a sheepskin wash mitt to get a more effective clean – When using a foam cannon, it can be hard to reach all of the dirt and grime that is caked onto your car. By pairing it up with a sheepskin wash mitt, you can easily reach any parts of your car that would otherwise be difficult to clean.

You need to spray off the soap regularly during washing – You will find that this dirt will stick very quickly if you don’t regularly spray the soap off. This is one of the biggest mistakes that people make when using a foam canon.

Don’t forget the wheels – Some people tend to forget about their wheels when cleaning their car, but you really don’t want to do that. The wheels are one of the dirtiest parts of your car, so give them plenty of attention.

Don’t use too much soap – Use just enough soap to make a good lather. Too much soap can cause rinsing issues and leave spots on your paintwork.

You need to use the right amount of water – You will also need to experiment with the correct amount of water when using a foam cannon. It’s important that you spray this on to your car first before adding any soap.

Make sure that your foam cannon is completely empty when you are done – Check to see if there is any residue left in the cannon after every use and clear it out properly. Leaving it full can cause some damage to the foam cannon and reduce its lifespan.

How to use a foam cannon to get the best results ?

For the best results, foam with a mild car shampoo that is high in lubricity, such as Euro Foam Platinum or Torq Foam Blaster 6.

if you get the best result so first of all Fill your foam cannon with water and insert your high-lubricity foam shampoo. Hold the gun 3-5 inches from the vehicle and spray away in sweeping motion. This process should be repeated until desired luster has been reached on dirty paint surfaces and for cars that have not been washed for some time.

After rinsing, use a high-lubricity detail spray to bring out the maximum gloss.

How to use a foam gun: A few steps

Using a foam gun is an easy way to clean a vehicle without the use of water. This method is suitable for cleaning wheels, grilles, door jambs and engine bays, etc. You can even use it on the interior or engine compartment, but we recommend using it with plenty of ventilation. A paint safe detailing spray will help dry off the surface once you’re finished and remove any residue left over from the soap you’ve used.

1. Fill the foam gun with your high quality or lubricity shampoo.

2. Start at one end of the vehicle and begin spraying the surface you’re washing. Begin your pass from top to bottom, then follow up from bottom to top for a uniform wash without any drips or spots where you may have missed an area. Continue until you have covered all areas you’re cleaning with soap, then wipe down with a microfiber towel to remove any excess soap that built up on the surface of the car or wheel, etc.

3. Once you’re done, close the soap cap or rinse tank on the foam gun and then rinse it with water, leaving all soap residue inside the tank/cartridge, then dry it off with a microfiber towel and hang it up to dry when you’re finished.

The foam cannon should never be rinsed in your vehicle’s interior, as this is considered a contaminant. The remaining areas where you have used your foam gun should be dried thoroughly as well.

What Difference Between a Foam Gun, Foam Lance, and a Foam Cannon ?

It is extremely important to understand the difference between a foam lance, foam gun, and foam cannon. They all generate foam which doesn’t make much of a difference, but there are some issues which differ.

Foam lances are generally used in an industrial setting where you only have one vehicle at a time that needs to be cleaned. Maybe you have multiple vehicles, but they are on a different area of the ship which usually has a high volume of traffic. A foam lance will be used on your high profile areas like cabins and around people. The foam will help keep the cabin from getting foggy by clearing off the excess water and debris that the salt spray leaves behind.

Foam Guns are for use in a marine or maritime environment where there are multiple vehicles at once that need to be cleaned. Foam guns are typically used in detailing shops where there may be 3-5 cars needing to be cleaned at once. Typically foam guns will have a pressure regulator on them in order to stabilize the pressure of the foam that is generated.

Foam cannons are a larger device that requires a garden hose to be connected to it in order for it to work. It can take up to 50 PSI from the hose and generate large amounts of foam, making it ideal for larger shops.

Foam cannons are most commonly used in automatic car washes where there can be 15-20 cars needing to be washed at once and the foam needs to be applied as economically as possible. A foam cannon generally uses very little soap. You can purchase large pre-filled containers with soap already in it or use a pump to dispense your own personal soap into the foaming tank.

A key issue with foam lances or foam guns is that they tend to clog up very easily. Most of them have little holes in the tip to allow the soap to come out. They tend not to last long once this hole gets clogged because gravity pulls the soap down into the hose and then it makes its way back up into the gun tip, making a bubbly mess when it comes out of your gun.

Soap-to-Water Ratio for Foam Cannons

A foam cannon is a pressurized device that turns liquid soap and water into thick, foamy suds. The amount of soap used in the best foam cannon is important, as too much soap can damage your vehicle’s paint, and too little soap will not create enough foam. The ideal soap-to-water ratio for a foam cannon is 1:4, meaning 1 part soap to 4 parts water. This ratio will create a thick foam that will cling to your vehicle and loosen dirt and grime, without harming your paint. If you find that your foam cannon is not creating enough foam, you can increase the soap-to-water ratio. However, be sure not to use more than 1 part soap to 2 parts water, as this can damage your paint. If you find that your foam cannon is creating too much foam, you can reduce the soap-to-water ratio. However, be sure to use at least 1 part soap to 6 parts water, as this is the minimum amount of soap needed to create a foamy suds.

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