Ukwelashwa kwesisekelo sesayithi 1. Ngaphambi kokubeka i-geomembrane ye-HDPE, isisekelo sokubeka kufanele sihlolwe ngokuphelele kanye neminyango efanele.Isisekelo sokubeka kufanele sibe siqinile futhi siyisicaba.Ngeke kube khona izimpande zesihlahla, imfucumfucu, amatshe, izinhlayiya zikakhonkolo, amakhanda okuqinisa, izingcezu zengilazi kanye ...
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