Urugi rwikirahure Icyumba gikonje, uzwi kandi nka firigo zikaba cyangwa kugera mu gukonjesha mu nganda, ni ubwoko bushya bwibikoresho bya firigo bikoreshwa cyane mugukoresha mububiko bworoshye. Hamwe no gushyira mubikorwa umuryango wose hamwe no kurema ikirere 711, ba rwiyemezamirimo bashya kandi benshi batangiye kwitondera icyumba gikonje. Nkumutungo wikirahure cyurugo rwikirahure, urubura rwa shelegi rukonje ruzasobanura mu buryo burambuye ni izihe nyungu z'ibihuri zo kubika ibirahure muri Porogaramu.

Mbere ya byose, kwerekana ingaruka nibyiza. Igishushanyo rusange ni ikirere, byoroshye kwerekana uburyo bworoshye bwo kwerekana no gukoresha, kandi birashobora kunoza urwego rwibimenyetso byamaduka yoroshye.

Icya kabiri, abaguzi bafite uburambe bwiza bwo kunywa. Ingaruka yo gutandukana nubushyuhe ni ikirahure cyijimye, urugi rwikora, gari ya moshi ihinduka, nibindi bisobanuro birashobora kuzamura neza uburambe bwo guhaha.

Noneho, ibintu bifatika kandi byoroshye. Igishushanyo mbonera cyububiko bunini bushobora gukonja no gukomeza ububiko bwose, kandi birashobora kuzuzwa byoroshye mugihe inzoga zigurishwa vuba.