Amapayipi omliloziyingxenye ebalulekile yengqalasizinda yethu kazwelonke yokuphepha emlilweni. Asetshenziswa abezicishamlilo ukuze bathole amanzi aphuma kumapayipi amakhulu asendaweni. Itholakala kakhulu emigwaqweni yomphakathi noma emigwaqweni emikhulu ngokuvamile ifakwa, iphethwe futhi inakekelwa izinkampani zamanzi noma iziphathimandla zendawo zokucima umlilo. Nokho, niniizicishamlilozitholakala endaweni yangasese noma yezentengiso umthwalo wemfanelo wokuwunakekela ukuwe. Amapayipi okucisha umlilo angaphansi komhlaba adinga ukuhlolwa nokunakekelwa njalo ngokuhambisana ne-BS 9990. Lokhu kuqinisekisa ukuthi azosebenza esimweni esiphuthumayo okuvumela abezicishamlilo ukuthi baxhume amapayipi abo aseduze nomlilo ukuze bathole amanzi kalula.

Kumanzi Ngaphandleumshini wokucisha umliloiyindawo yokuhlinzeka ngamanzi exhunywe nenethiwekhi yesistimu yokulwa nomlilo ngaphandle kwesakhiwo. Isetshenziselwa ukuhlinzeka ngamanzi ezinjini zomlilo ezivela kunethiwekhi kamasipala yokuphakela amanzi noma inethiwekhi yamanzi yangaphandle lapho ingekho ingozi yezingozi zezimoto noma umkhathi obanda. Kungcono ukusetshenziswa ezinxanxatheleni zezitolo, ezikhungweni zezitolo, emakolishi, ezibhedlela, njll. Kungaxhunywa nemibhobho ukuvikela umlilo.