I-S312, 02S404 imikhono eguquguqukayo futhi eqinile engangeni manzi

I-S312, 02S404 imikhono engangeni manzi isetshenziswa ikakhulukazi ngaphansi kwezimo zokusebenza lapho kunokudlidliza noma isidingo esiqinile sokuvikela amanzi endaweni lapho ipayipi lidlula khona odongeni. Ngakolunye uhlangothi, kuyasiza ekufakweni nasekususweni kwepayipi, kanye nokunqanda ukubola kanye nokunqanda ukuvuza; ngakolunye uhlangothi, Iphinde ivikele izakhiwo emonakalweni obangelwa amanzi nokudlidliza.