Tanks, which should be inspected every two to three years for the presence of accumulated sediments. Some drinking water supplies will need to be disinfected
Musngila madzi mumene mukuyenera kuyan’ganiridwa pa zaka ziwiri mpaka zitatu zili zonse kuti muone zotsalira pansi. Zosungulira madzi zizayenera kuchitsa tizilombo