VAC-TRON'S PURCHASING A VACUUM SYSTEM 101

1. VACUUM UP HEAVY MUD without skimming. This lets you check the inches of mercury and the unit's pull.
2. VACUUM UP THE GRANITE rocks used by railroads , this will check the amount of air moved by the unit
3. VACUUM UP DRY SAND to check the filtration system. Make sure the manufacturer allow you to try this. Some equipment lines can not handle this and will experience fatal damage to the unit.
4. LOCATE AN UNDERGROUND UTILITY LINE in the hardest soil you will work in. Don't be afraid to try this on hard clay, shale or lime rock.
5. Then, DUMP OUT ALL OF THE ABOVE. This will give you an idea of how easily or not this very important part of the system works.