Unyango lwesiseko sendawo 1. Ngaphambi kokubeka i-geomembrane ye-HDPE, isiseko sokubeka siya kuhlolwa ngokubanzi kunye namasebe afanelekileyo.Isiseko sokubeka siya kuba siqinile kwaye sicaba.Akusayi kubakho zingcambu zemithi, ingqushu, amatye, amasuntswana ekhonkrithi, iintloko zokuqinisa, iitshiphusi zeglasi kunye ne...
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