Two nail points of different length

Two nail points of different lengths are fixed to the metal plate. These nail points are used for observation of decreasing water level during the infiltration. Both (inner and outer) cylinders are driven into the soil (to a depth of 10-20 cm). It is recommended that the turf around the rings' periphery is cut with a knife, the soil is then less disturbed by driving the rings into it. The metal plate is placed on the soil surface in the inner cylinder, and water is poured into both cylinders (the water level in the inner cylinder should reach the upper nail point).

Результаты (хорватский) 1:

Dvije točke noktiju različitih duljina su fiksirani na metalne ploče. Ove noktiju bodovi se koriste za promatranje smanjuje razinu vode tijekom infiltracije. Oba (unutarnji i vanjski), cilindri su odvezeni u tlo (do dubine od 10-20 cm). Preporučuje se da se trava oko periferije Prstenova "je rezati nožem, tlo se tada manje poremećen vožnje prstenje u nju. Metalna ploča koja je smještena na površini tla u unutarnjem cilindru, a voda se izlije u oba cilindra (razina vode u unutarnjem cilindru mora postići gornju točku noktiju).