Matumba apulasitiki obwezeretsanso akuda ochuluka amapangidwa ndi zinthu za HDPE.Zopanda poizoni, zopanda fungo.Zogwirizira zidapangidwa kuti zizinyamula mosavuta.Kukula kumatha makonda, Kutha kugwiritsidwa ntchito m'nyumba ndi kunja.Ubwino wapamwamba wokhala ndi mtengo wampikisano.