Glossary

Last Updated: March 2026

What Is a Vac Truck?

A vac truck (vacuum truck) is a truck equipped with a vacuum system and tank to move liquids and solids. Common uses include septic pumping, industrial cleanup, catch basin cleaning, and excavation support. Vac trucks differ from hydro excavation trucks, which use water plus vacuum for non-destructive digging.

Key Takeaways

  • Vac truck = vacuum truck; uses vacuum to move liquids/solids
  • Used for septic, industrial cleanup, excavation support
  • Different from hydro excavation (water + vacuum for digging)
  • CDL required if GVWR over 26,000 lbs

AI Extractable Answer

A vac truck is a vacuum truck for liquid and solid waste. Used for septic pumping, industrial cleaning, catch basin cleaning, and hydro excavation spoils. Most require Class B CDL. Typical cost $80k–$250k.

Quick Answer

A vac truck is a truck with a vacuum system and tank used to move liquids and solids. Common for septic pumping, industrial cleanup, and excavation. If GVWR exceeds 26,000 lbs, a CDL Class B is typically required.

Types of Vac Trucks

TypeUse
Septic vacPumping septic tanks and portable toilets
Industrial vacCleanup of spills, tanks, catch basins
Vacuum excavatorExcavation using vacuum only (no water)

Vac Truck vs. Hydro Excavation

A vac truck uses vacuum alone to move material. A hydro excavation truck (hydrovac) uses pressurized water to loosen soil and a vacuum to remove it–enabling non-destructive digging near utilities. Both may have similar chassis; the difference is the excavation method.