Munzvimbo yekuchengetedza dziva, kushandiswa zvine hungwaru kwemakemikari emumadziva kwakakosha pakuona mvura inopenya, yakachengeteka, uye inokoka. Trichloroisocyanuric acid, inowanzo zivikanwa seTCCA, yabuda semutambi akasimba munhandare iyi. Ichi chinyorwa chinotarisa mukushandiswa kwakaringana kweTCCA, kudurura lig...
Verenga zvimwe