Concrete PolyLock, inonziwo E-lock kana polylock, yakagadzirwa neHDPE, E-shaped, yakakodzera kusungirira mukongiri zvakasimba. Iyo yakakandwa kana kuisirwa mukongiri yakanyorova paunenge uchishandisa, kune yakafumurwa welding nzvimbo, geomembrane inogona kusungirirwa pairi nyore. Nzvimbo yakatsetseka ine hupamhi 15cm kana 10cm ndeyekuvhetesa mapepa epolyethylene ukuwo 3-4cm kureba zvigunwe zvichishandiswa kuisa kongiri yewebhu kuti ivharwe mukati uye kugadzirisa mubatanidzwa negeomembrane kugadzira kubhengi kusingapindi mvura.