Timapereka ntchito yokonza zinthu malinga ndi kusanthula kwanu madzi, timapereka zida malinga ndi zomwe mukufuna.
1. Dongosololi limagwiritsa ntchito njira yeniyeni popanda kusintha gawo kuti lichotse mchere m'madzi ndikuyeretsa mizu pansi pa nyengo yofunda. Chiŵerengero cha kuchotsa mchere m'madzi chikhoza kufika pa 99.9%, ndipo ma colloid, zinthu zachilengedwe, mabakiteriya, mavairasi, ndi zina zotero m'madzi zimatha kuchotsedwa nthawi yomweyo;
2. Kuyeretsa madzi kumadalira mphamvu ya madzi yokha, ndipo mphamvu zomwe amagwiritsa ntchito ndizochepa kwambiri pakati pa njira zambiri zoyeretsera madzi;
3. Dongosololi limatha kugwira ntchito mosalekeza kuti lipange madzi, dongosololi ndi losavuta, losavuta kugwiritsa ntchito, ndipo khalidwe la madzi a chinthucho ndi lokhazikika;
4. Palibe kutulutsa zinyalala za mankhwala, palibe njira yothetsera zinyalala za asidi ndi alkali, komanso palibe kuipitsa chilengedwe;
5. Chipangizo cha dongosolochi chimagwira ntchito yokha kwambiri, ndipo ntchito yogwirira ntchito ndi kukonza zida ndi yochepa kwambiri;
6. Zipangizozi zimakhala ndi malo ochepa ndipo zimafuna malo ochepa;
7. Kuchuluka kwa ma colloid monga silika ndi zinthu zachilengedwe m'madzi kumatha kufika pa 99.5%;
8. Zipangizo zamakina zimatha kugwira ntchito mosalekeza kuti zipange madzi popanda kuletsa kukonzanso ndi ntchito zina.
Pa kutentha kochepa kwambiri kwa madzi komwe kumabwera, khalidwe loipa kwambiri la madzi, komanso kuchuluka kwa madzi omwe akuyenda bwino, khalidwe la madzi okonzedwa bwino komanso kutulutsa madzi bwino kwa makinawo ziyenera kukwaniritsa zofunikira za ogwiritsa ntchito.