Uburyo bwo gukuraho umukungugu mubyiciro bibiri, ni ukuvuga gukuramo ivumbi no gukanda, birakoreshwa. Mugihe impapuro ziri kumukandara utanga, umukungugu uri hejuru yacyo utwarwa numuzingo wogosha umusatsi hamwe nu murongo wohanagura, ukurwaho numufana woguswera hanyuma ukayoborwa numuzingo ushyushya amashanyarazi. Muri ubu buryo ivumbi ryashyizwe kumpapuro mugucapura rivaho neza. Byongeye kandi, impapuro zirashobora gutwarwa neza nta gusubira inyuma cyangwa kwimurwa hakoreshejwe uburyo bworoshye kandi bushushanya umukandara woherejwe hamwe no guhumeka neza.