Iki nigishushanyo cyerekana inzira ya Reverse Osmose.Iyo igitutu gishyizwe kumurongo wibanze, molekules zamazi zihatirwa kunyura mugice cya kabiri cyinjira kandi ibyanduye ntibyemewe.
Indwara ya osmose ihindagurika noneho ikuraho molekile ziremereye kuruta amazi, nka sodium, urugero rwinshi rwa gurş, imyunyu ngugu, na fluoride.Hanyuma, akayunguruzo ka nyuma ya karubone kogesha amazi.