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Win the giveaway! — value of $480

How to Use a Pressure Washer Foam Cannon

April 12, 2023

Bring car wash-like foam to your driveway with the SurfaceMaxx Pressure Washer Foam Cannon. Cut through road grime with a thick foam that penetrates dirt and eliminates back-breaking scrubbing. The pressure washer foam cannon features a fully adjustable fan pattern and air intake knob that controls the spray and amount of foam that is dispensed. It is compatible with gas and electric pressure washers from 1600-3700 PSI and is also very easy to use. Simply fill the bottle with your favorite foaming soap and warm water, connect the SurfaceMaxx Pressure Washer Foam Cannon to a spray gun and you are ready to clean your car, RV, boat, house and more with a thick, sudsy foam.

Steps for a Driveway Carwash


  1. Attach the bottle to the sprayer.  Turn the sprayer clockwise until tight.  Do not overtighten.
  2. Connect the foam cannon to the quick connect fitting on your spray gun or wand.
  3. Make sure your pressure washer is turned “off” while connecting the foam cannon.*


  1. The air intake knob adjusts the amount of foam.  Turn counterclockwise for more foam and turn clockwise for less foam.
  2. Once the pressure washer is running, pull the trigger on the pressure washer spray gun to spray foam.
  3. When finished, shut off the pressure washer.  Relieve any pressure left in the line by pulling the trigger on the pressure washer gun. 
  4. Remove the sprayer from the bottle.  Turn the sprayer counterclockwise until you can remove it from the bottle.
  5. Empty remaining soap mixture from the bottle. 
  6. Run water through the sprayer for 30 seconds to clean filter.
  7. Remove sprayer from quick connect and thread back onto bottle.

NOTE: Always refer to your pressure washer owner manual for operating, safety and troubleshooting instructions.
NOTE: Do a test shot away from the object you are spraying to ensure the foam cannon is attached properly and you are getting the desired spray pattern.
CAUTION: Do NOT point the foam cannon at people or animals as it can result in serious injury.

That’s it!  You are now ready to get pro performance and a powerful clean

So, the next time you want to restore your car’s shine, visit your local Lowe’s store and purchase the SurfaceMaxx Pressure Washer Foam Cannon.