Ukukhula nentuthuko yazo zonke izitshalo zasendlini kuya ngesakhiwo samanzi okunisela. Kepha emanzini ompompi inani lezinto ezilimaza izitshalo livame ukwedlula izinkambiso ezivumelekile. Inamasawoti amaningi ancibilikayo, kanye nosawoti we-bromine, chlorine, i-sodium ne-fluorine. Isibonelo, usawoti we-fluoride unomphumela onobuthi ezitshalweni. Izitshalo ezinjengezihlahla zesundu nodrakoena zingafa nhlobo.
Isibonelo, i-chlorophytum ithathwa njengesitshalo esingathobeki futhi okulula ukusinakekela, kodwa futhi ingaba nezinguquko ezingezinhle ekukhuleni kwayo nasekubukekeni kwayo lapho isetshenziselwa ukunisela amanzi kusuka ohlelweni lokunikezela ngamanzi. Owokuqala ukomiswa kwamaphethelo amaqabunga. Futhi lokhu kuvela emanzini asezingeni eliphansi.
Amanzi aqukethe i-chlorine ekwakhiweni kwawo angadala ukumiswa kokukhula kwezitshalo kanye noshintsho kumbala wengxenye yeqabunga lembali engaphakathi. Ukuvimbela lokhu, kwanele ukushiya amanzi ompompi ethangini ngosuku ukuze kuxazululwe, bese kusetshenziselwa ukuthambisa izitshalo. Lapho zivikelwa, ezinye izinto eziyingozi ziyavela emanzini.
Ukulimala kwamanzi empompo wezitshalo zasendlini kulele kokuqukethwe usawoti ophezulu okukuwo. Usawoti uvimba ingxenye yezimpande yezitshalo ukuthi ingangeni amanzi adingekayo, okusho ukuthi izitshalo zizwa ukuntuleka komswakama Kepha izinga eliphansi likasawoti emanzini wokunisela lingalimaza izilwane ezifuywayo. Kuliqiniso, inqubo yokubuna isitshalo isizoba yinde. Imbali izofa kancane kancane, iqala empandeni, bese iba ngaphezulu komhlaba. Futhi akunandaba ukuthi angakanani amanzi asetshenziswa ngesikhathi sokunisela uma uqukethe usawoti osezingeni eliphakeme. Ukulimala kwesitshalo kubangelwa umthamo wamanzi amakhulu namancane, ngoba imbali ayikwazi ukusebenzisa la manzi.
Abanye abantu bacabanga ukuthi amanzi athambile enza umonakalo omncane ezitshalweni. Eqinisweni, i-sodium chloride, esetshenziselwa ukuthambisa amanzi, nayo iyingozi.
Ukuze izitshalo zasendlini zizizwe zihamba kahle futhi ziphephile, kuyadingeka ukusebenzisa amanzi, imvula noma ancibilikisiwe ukunisela. Kuyacaca ukuthi lokhu akuyona into elula kakhulu futhi kubiza kakhulu (ukuthenga amanzi ancishisiwe), kepha zonke izimbali zihlala zinjalo.
