Iyo ukoresheje umusenyi wumye, theakumaicyuhosanderigizwe na hose ifatanye na vacuum yawe yumye.Ku mpera imwe nisander, idasanzwe ya gride-isa nogushyira mubikorwa ikurura iumukungugu wumyekure no hepfo binyuze muri hose.Ku rundi ruhande rwa hose ni indobo y'amazi.