Sebopeho sa cartridge ea vertical filter se sebelisetsoa ho nolofatsa ho monya lerōle le ho tlosa lerōle; 'me hobane thepa ea filthara e sisinyeha hanyenyane nakong ea ho tlosoa ha lerōle, bophelo ba cartridge ea filthara bo bolelele ho feta ba mokotla oa sefe,' me litšenyehelo tsa tlhokomelo li tlaase.