Iifilters ezinye nezandi zinzixhobo eziphambili ukunceda amanzi abethile kwaye engachazwanga. Abantu basebenzisa iisand filter ukuchaza amanzi ngexesha elide. Iintambo zokwenza zakhulise iisand filter ukuba zinzile kakhulu ngokukhupha inkunkuma kunye neegerms kumanzi - oku kunceda amanzi ukuba lula ukuya kuyo.
Ukusebenzisa umhlaba ukulungisa amanzi kuyindlela yokusebenzisa iifilthi ezikhethweyo ukuthatha iingcambu ezilungileyo. Le filthi iyahlwa ngokwezinye izinto zokulungisa, umhlaba, isanla kwaye nezinye iindlela. Iingcambu eziphambeneyo zikhutshelwa kwaye zikwacelwa kumhlaba kunye nesanla, xa amanzi apasebenzisa, kuya kuba lula kunye nokulula. Le nkqubo yekhono yinceda ukuthi amanzi ethembekileyo kwaye zilungileyo.
Kufuneka sithinte imithi yembele kwaye yilungileyo ngokunzulu. Imithi engavumelekanga iyafaka iinkcukacha kwaye zingasithixo. Siyazama ukuthi iisandisi zokulungisa imithi zibe yimfuneko kwaye abantu bakholeke ukuthi usebenzisa imithi yembele, nangona akudingi ukuba yilungileyo. Iisandisi zokulungisa imithi zeZPACK ziyafumana ngokuvumelana neenkcazo kwaye zingathintwa ngokulungileyo—ngoko ke sineemithi elungileyo.
Isisombululo seZPACK ngokusebenzisa isandi kuya kumthetho othileyo yokulungisa imithi. Iisandisi zokulungisa imithi zikhusela ukuba sibe neemali ezinkulu kwaye zingachithwa ngokukhawuleza. Zingadinga inkcitho encinci kwaye zikhawuleza ukulungiswa, ngoko ke ziyagqitha kumthetho othileyo yokulungisa imithi. Iisandisi zokulungisa imithi zeZPACK zenziweyo ukuthatha amathixo ngokuvumelana kwaye imithi esebenzisa yilungileyo.
Ukuhlanganiswa kwezandi kuyindlela encinciyo kwaye enokwenzeka ukuchaza amanzi. Amanzi aqhelwe kwiingceke kunye nezandi, eziphatha inkunkuma kunye neempawu kumanzi. Ngenkqubo yaqhelwa amanzi kwi filter, into engathetha iphathwa kwiingceke kunye nezandi, kwaye emva koko siphumelela kamanzi amathathu. Iisand filter za-ZPACK zenziwe ukunceda kakhulu ukunceda amanzi ukuya kumaqo athile.