The evaporator cores drown quickly, ie suck with too much liquid full, the then drips from the mouthpiece of EVOD - regardless of whether you pull vigorously or lightly. A reasonable steam production is not possible under these circumstances. Nevertheless, they captured a few days later, usually after two or three to kokeln on. Also downward, ie in the direction of the battery, Liquid exits (siffen). Visually they meet the PROTANK evaporators, not those for EVOD, so have a shorter tube. Of course, these can also be incorporated into the evaporator EVOD. Processes are different from the known to me EVOD evaporator: in the latter can be unscrewed the tube, these not.
All in all a very bad product of lowest quality, the purchase can be recommended to anyone.