Hydraulic invariance: the need to disperse/laminate rainwater Join Geoplast webinar “Water tanks: accumulation/dispersion of water volume” Drening: plastic tunnel for rainwater infiltration and attenuation Is there a better solution among all water management systems? Geoplast will attend Mountain Planet 2018 Drainpanel New Technical Manual is online Global water management issues Best 9 Geoplast Projects of 2017 1 … 8 9 10 11 12