Isendlalelo Ukuthi i-trunk line noma inethiwekhi yendawo yedolobha elikhulu, izinsiza zembobo yamapayipi angaphansi komhlaba ziqinile kakhulu. Uma kuqhathaniswa nezintambo ezijwayelekile, ukusetshenziswa kwamakhebula amancane aphephethwa ngomoya kungasindisa cishe 50% wezinsiza ezisezimbotsheni zamapayipi. Isakhiwo esijwayelekile sesistimu yekhebula elincane eliphephethwa komoya ikhebula likamama ipayipi-micro-pipe-micro-cable. Ipayipi likamama lingafakwa embotsheni yepayipi likakhonkolo, futhi ukwakhiwa komzila omusha nakho kungenziwa. Kushubhu yomzali ye-HDPE ebekiwe noma ye-PVC, noma beka kusengaphambili ishubhu elingumzali neshubhu elincane kumzila wekhebula obonakalayo osanda kwakhiwa, ingashaywa ngeshubhu noma ishaywe umoya...