A drop-former rainfall simulator was designed and tested. Its novelty is the use of porous pipes instead of capillaries. Compared to rainfall simulators using capillaries, this feature makes easier its building and maintenance. Rainfall intensity can be selected by simply setting the water supply pressure. The rainfall simulator was able to deliver rainfall intensities between 24 and 75 mm/h for a pressure range of 0.25-1.40 bar. As other dropformer rainfall simulators, the rainfall kinetic energy (expressed in Tm-2.mm(-1)) and drop size do not depend on the rainfall intensity. Tested on a 0.25 m(2) area, larger format could be build.