Vacuum unit for sewage waste set up over truck, cylindrical tank with a capacity of 6,000 to 18,000 liters. It is completely made of steel sheets. A 500 mm manhole inspection opening. Lateral walkways. A 2½” loading dock with a spherical bronze shutoff valve. A 200 mm diameter unloading dock – mud outlet. Vacuum equipment with rotary vane high vacuum pump. Double effect system: “suck and expel.” Exterior paint: phosphate coat and two synthetic paint coats. Full factory accessories.