The unit was delivered quickly and is easy to assemble, if you are not completely inept. Included is only a pictorial representation of the assembly and functions. Even if the plastic parts are not one hundred percent look reassuring, everything funtioniert properly. The pressure is sufficient to distribute approximately one quarter of the filling (about 5 liters of total capacity) in a fine mist; then has to be pumped in. The pumps should be easy and less powerful people. Overpressure (3 bar) can not be generated because the pressure relief valve audibly (hiss) engages. A regulation / adjustment of the diversification of the spray is only possible via the distance to the object and the pressure generated. Overall, a decent machine with respect to the price / performance ratio. Buy recommendation!