Igabanyijemo ibiceigice kimwe/ubwiherero bw'ibice bibiris hakurikijwe ubwoko. Guhitamo ubwiherero bufatanye cyangwa buvanze ahanini biterwa n'ingano y'ubwiherero. Ubwiherero buvanze ni gakondo. Mu cyiciro cya nyuma cyo gukora, igice cyo hasi n'urwego rwa kabiri rw'ikigega cy'amazi bihuzwa n'amapine n'impeta zo gufunga, bifata umwanya munini kandi byoroshye guhisha umwanda no kwakira umwanda aho uhujwe. Ubwiherero bufatanye ni ubugezweho kandi bworoshye, bwiza mu miterere, bufite amahitamo menshi kandi buhujwe. Ariko igiciro kirahenze cyane. Bugabanyijemo ubwoko bw'umurongo w'inyuma/ubwoko bw'umurongo wo hasi hakurikijwe icyerekezo cy'imyanda ivamo.
Ubwoko bw'umurongo w'inyuma bwitwa kandi ubwoko bw'umurongo w'urukuta cyangwa ubwoko bw'umurongo utambitse. Dukurikije ibisobanuro nyabyo, dushobora kumenya icyerekezo cy'aho amazi asohoka mu myanda. Mu kugura ubwiherero bw'inyuma, tekereza uburebure kuva hagati y'aho amazi asohoka kugeza hasi, muri rusange ni mm 180; Ubwoko bw'umurongo wo hasi bwitwa kandi ubwoko bw'umurongo w'ubutaka cyangwa ubwoko bw'umurongo ugororotse. Nk'uko izina ribisobanura, bivuga ubwiherero bufite aho amazi asohoka ku butaka. Witondere intera iri hagati y'aho amazi asohoka n'urukuta mu gihe uguze ubwiherero. Intera iri hagati y'aho amazi asohoka n'urukuta igabanyijemo mm 400, mm 305 na mm 200. Muri zo, isoko ryo mu majyaruguru rifite icyifuzo gikomeye cy'ibicuruzwa bipima intera ya mm 400.
Hari isoko ry’amasafuriya ya mm 305 risaba cyane ibicuruzwa biva mu mwobo wa mm 305 ku isoko ryo mu majyepfo. Dukurikije uburyo bwo gusuka amazi, ubwiherero bushobora kugabanywamo ubwoko bwo gusuka amazi n’ubwoko bwo gusuka amazi. Amahitamo aterwa n’icyerekezo amazi asohokamo. Niba ari ubwiherero bw’inyuma, ugomba guhitamo aho amazi asuka amazi mu buryo butaziguye bitewe n’uko amazi asohoka. Aho amazi asohokamo amazi ni hanini kandi ni ndende, kandi amazi asohokamo amazi asohoka mu buryo butaziguye bitewe n’uko amazi asohokamo amazi. Ingorane ni uko urusaku rwo gusukamo amazi ari rwinshi. Niba ari ubwiherero bwo hasi, ubwiherero bwo gusukamo amazi bugomba guhitamo. Hari ubwoko bubiri bwa siphon, jet siphon na vortex siphon. Ihame ry’ubwiherero bwo gusukamo amazi ni ugukoresha amazi asohokamo kugira ngo habeho siphon effect mu muyoboro w’amazi asohokamo amazi. Aho amazi asohokamo amazi ni hato kandi hatuje. Ingorane ni uko amazi akoreshwa cyane. Muri rusange, ubushobozi bwo kubika litiro 6 bukoreshwa icyarimwe.
Ubwiherero bushobora kugabanywamo ubwoko butatu: ubwoko bwo gucukura, ubwoko bwo gucukura bwa siphon n'ubwoko bwa siphon vortex. Ingano y'amazi yo gucukura n'ubwoko bwo gucukura ya siphon ni litiro 6, kandi ubushobozi bwo gusohora imyanda ni bwinshi, ariko ijwi riranguruye iyo ucukura. Amazi akoreshwa cyane ni menshi, ariko ingaruka ni nziza. Ubwiherero bwa siphon bucukura bwa direct-flush bufite ibyiza byo gucukura bwa direct-flush n'ubwoko bwa siphon, bushobora koza imyanda vuba gusa, ahubwo bunatuma amazi agabanuka.
Ubwoko bw'ubwiherero ni ubu bukurikira:
Ubwiherero bugizwe n'ibice bitandukanye ni gakondo. Mu cyiciro cya nyuma cyo gukora, imisumari n'impeta zo gufunga bikoreshwa mu guhuza urufatiro n'igorofa rya kabiri ry'ikigega cy'amazi, gifata umwanya munini kandi byoroshye guhisha umwanda aho gihuriye.
Inkari y'igice kimwe ni igezweho, ifite imiterere myiza, ifite amahitamo menshi kandi ikoze neza. Ariko igiciro cyayo kirahenze cyane.
Umusarani ugomba kunyuzwamo amazi. Umusarani wo mu mazi ubanza kuba usakuza cyane, kandi amazi ashobora gusohoka. Umusarani wo mu mazi urimo gutuza cyane. Umusarani wo mu mazi urimo ufite umusarani wo mu mazi urimo umusarani, utuma amazi asukurwa neza kandi ukagabanya urusaku. Abantu benshi bita ku ngaruka zo gusukurwa mu mazi iyo bagura ubwiherero, aho guhitamo ubwiherero mu buryo bwo gusukura.
