Endaweni yethu yokuhlola yangempela, kunezinkomba eziningi okufanele zikalwe, I-Residual chlorine ingenye yezinkomba ezivamise ukudinga ukunquma.Muva nje, sithole impendulo evela kubasebenzisi: Lapho sisebenzisa indlela ye-DPD ukukala i-chlorine esele, kuzwakale iphunga elinamandla, kodwa ukuhlolwa ...
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