Umphezulu uphathwa ngonyango olukhethekileyo lokucoca/lokutshisa, oluthintela ngempumelelo ifayibha ukuba ingawi kwaye ingcolise i-filtrate, umaleko wesihluzo othambileyo nofanayo onemilinganiselo emithathu unamandla aphezulu okubamba amasuntswana aqinileyo kunye ne-colloidal, kwaye iifayibha ezinde ezinamandla aphezulu zenza ibhegi yesihluzo ibe nefuthe lokuhluza elizinzileyo kunye nobomi benkonzo ende.