I-screw press yokukhupha amanzi isetyenziselwa ukuqinisa nokukhuculula amanzi odaka ngempumelelo. Amanzi odaka ngamanzi anezixa zezinto eziqinileyo ezixhonyiweyo, ezinokuveliswa ngokucoca amanzi amdaka, ishishini lokucubungula ukutya, ishishini leekhemikhali kunye namanye amacandelo emisebenzi yabantu.

Umatshini wokukhupha amanzi odaka olucinezelwa ngesikrufu sisixhobo esitsha sokwahlula ulwelo oluqinileyo, esisebenzisa umgaqo wokukhupha isikrufu, sivelisa amandla okukhupha amanzi aqinileyo ngokutshintsha ububanzi besikrufu kunye nepitch, kunye nomsantsa omncinci phakathi kweringi ehambayo kunye neringi ezinzileyo, ukuze kufezekiswe ukukhutshelwa kwamanzi odaka olungaphandle.