In Feb­ru­ary 2018 the Insti­tute for Under­ground Infra­struc­ture, IKT, car­ried out inde­pen­dent prod­uct test­ing on flow reg­u­la­tors. Six hydro-mechan­i­cal throt­tling devices for storm basins were exam­ined and com­pared. Dur­ing test­ing, the HydroSlide Auto­mat­ic Reg­u­la­tor Type GM was award­ed full points …