I-manifold, eyaziwa nangokuthi i-distribution manifold, iyingxenye eyinhloko yesistimu yokushisa ngaphansi komhlaba. Ikakhulukazi ixhuma amaphayiphi amakhulu okuphakelayo nokubuyisela amanzi futhi ihlukanisa amanzi ashisayo kuzo zonke izigaba zokushisa.

Isakhiwo Esiyisisekelo Nezisebenzi: I-manifold iqukethe ipayipi elikhulu lokusabalalisa (elixhunywe nephayiphi yokuhlinzeka) kanye nephayiphi elikhulu lokuqoqwa (elixhunywe nephayiphi yokubuyisela). Ipayipi elikhulu lokusabalalisa lisabalalisa amanzi ashisayo kumapayipi okushisa aphansi egumbini ngalinye, kanti ipayipi elikhulu lokuqoqwa liqoqe amanzi abuyayo. Imisebenzi yayo eyinhloko ifaka phakathi ukucindezela, ukunciphisa ucindezelo, ukuzinza kocindezelo, nokusabalalisa ukuhamba ukuze kuqinisekiswe ukuhamba kwamanzi ashisayo okufanayo.

Izinsiza ngokuvamile zifaka ama-valve ebhola, ama-valve okulawula ukuhamba, izikhala zomoya, kanye nezihlungi, ezisetshenziselwa ukulawula ukuhamba kwamanzi, ukususa umoya, nokuhlungwa kwezinto ezingcolile.

Ukuhlukaniswa Nezici: Ngokusekelwe emsebenzini nasestructure, ama-manifold angahlukaniswa abe izinhlobo ezintathu:

Uhlobo Oluyisisekelo: Luhlinzekwa nge-valve yebhola kanye nesikhala somoya esenziwa ngesandla, lunikeza kuphela ukulawula okuyisisekelo kokuvula/ukuvalwa ngaphandle kokulawula ukuhamba.

Uhlobo Olujwayelekile: Luphucuziwe nge-valve yokulawula ukuhamba kanye ne-automatic air vent, evumela ukulungiswa okunembile kwesilinganiso sokuhamba kuzo zonke izigaba; amamodeli athile asekelwa ukulungiswa okuhlakaniphile. **Uhlobo Olusebenza:** Luhlanganisa ukukhombisa okushisa/nengcindezi, ukuxuba okuzenzakalelayo, ukukala ukushisa, ukulawula okushisayo okuhlukanisiwe, kanye nezici zokulawula kude, ezifanele izinhlelo ezisezingeni eliphezulu.

Ngaphezu kwalokho, ngokusekelwe ekusebenzeni kokwakhiwa, ihlukaniswe kube nguMphakathi waseKorea kanye noMphakathi waseYurophu: uMphakathi waseKorea unokwakheka okulula kanye nezindleko eziphansi, ezifanele ukushisa okuyisisekelo ngaphansi komhlaba; uMphakathi waseYurophu unezici eziphelele kakhulu kanye nezinga eliphezulu lokuhlakanipha, ngokuvamile usebenza ezindlini ezisezingeni eliphezulu noma ezinhlelweni zokushisa ezizimele.

**Izidingo Zokwakha Nokufaka:** Ukuze kuvinjwe ukugqwala, i-manifold ivamise ukwenziwa ngezinto ezivimbela ukugqwala ezifana ne-copper ehlanzekile noma insimbi engagqwali; i-cast iron kufanele igwenywe. 1. Ngesikhathi sokufaka, kufanele ibekwe ngokuhlangene odongeni noma ebhokisini elikhethekile (njengasekitchen). I-manifold kufanele ibe okungenani ama-centimitha angama-30 phezulu komhlaba. Kufanele kufakwe ifilitha ekugcineni. Uhlelo lokuxhuma luwukuthi: ipayipi lokuhlinzeka → ivali ye-shut-off → ifilitha → i-manifold → ipayipi lokushisa ngaphansi komhlaba → ikholi → ipayipi lokubuyisela.

**Ukusetshenziswa Nokmaintenance:** Ngaphambi kokushisa unyaka nonyaka, ivali ye-vent ye-air kufanele ivulwe ukuze kususwe umoya emaphaketheni. Ifilitha kufanele ihlanzwe njalo ukuze kugcinwe amaphakethe ehlanzekile. Uma ingasetshenziswa isikhathi eside, ivolumu yamanzi ehambayo ingancishiswa. Ebusika, uma ukushisa kungasetshenziswa, amanzi emaphaketheni kufanele aphume ukuze kugwenywe ukujula nokuphuka. ‌