Kwimeko yethu yokwenyani yovavanyo, kukho izikhombisi ezininzi ekufuneka zilinganiswe, iResidual chlorine yenye yezalathi ezisoloko zifuna ukumisela.Kutshanje, sifumene impendulo evela kubasebenzisi: Xa usebenzisa indlela ye-DPD ukulinganisa i-chlorine eshiyekileyo, yavakala ivumba elibi kakhulu, kodwa uvavanyo ...
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