How to Clean a Bus

Most buses can be cleaned quickly with a high pH (alkaline) detergent, foamer to apply the chemical and a high pressure rinse.

Two-Step Touchless Cleaning:

  • Clean your bus from front to back and in small vertical sections (8-10 feet wide)
  • Step 1: Apply a high pH (alkaline) detergent to the vehicle surface using a Foam Maxx foamer
    • When applying the chemical, foam it on from the bottom of the vehicle to the top of the vehicle
  • Step 2: Allow for a short dwell time 45-60 seconds
    • If you are washing a vehicle outdoors, ensure you do not allow any chemical to dry on the surface of your bus
  • Step 3: Use warm water (90°F – 100°F) for your high pressure rinse and rinse the vehicle section from top to bottom
    • Maintain your high pressure nozzle within 18 inches of the surface and a spray angle of 15° – 45°
  • Repeat Steps 1-3 until your bus is clean.
  • The best high pH product to use for one-step cleaning a commercial bus is HEL100 Hellcat
  • The best high pH product to use for one-step cleaning a school bus is THU100 Thunderbolt


  1. Why do I need a Foam Maxx foamer to apply the chemical?Using a Foam Maxx foamer allows you to put the chemical where you need it. The foam will also remain in contact longer with the dirt/grease/oil to ensure thorough cleaning when you rinse.
  2. What dilution do you recommend?We tell our customers to start the high pH (alkaline) detergent at a strength of 1:20.
  3. What happens if I leave the chemical on and it drie