The basic scheme of the infiltration-meter is that a sealed testing area of about 0.25 m2 is symmetrical covered with constant intense model precipitation by sprinkler container connected to a tank or a water connection (Fig. 3). The precipitation intensity is chosen for a minimal water level within the sealed testing area to prevent a non-natural vertical water pressure. This goal is reached by a float switch or a sensoric distance meter in the testing area connected to a magnetic valve, which limits the water level within a few millimeters. A horizontal movement of the infiltrated precipitation is prevented because of an additional irrigation outside of the testing area. The infiltration is recorded by the change of flow