Many if not most tank trucks have pumps that draw a vacume on the tank. The same 3 or 4 inch hose that lets liquid out the bottom of the truck can be used to "suck" liquid up into the truck.
Many if not most tank trucks have pumps that draw a vacume on the tank. The same 3 or 4 inch hose that lets liquid out the bottom of the truck can be used to "suck" liquid up into the truck.
I just asked something about that.....dang....guess I am not good terrorist material, the convention would be over by the time I figured it out...lol.