The Pow-Air-Vac system is a pneumatically operated vacuum system, designed for 
vacumming up abrasive spills, and also can be used for recovery of abrasive in 
smaller usage applications. The system sits on a 200 Litre (44 gallon) heavy 
duty drum, and it`s pneumatic design means no electrical supply is required for 
operation. Requires 255m3/hr (150cfm) of compressed air @ 689KPA (100psi).