Marang-rang a likarolo tse tharo a kopaneng a geodrainage ke mofuta o mocha oa thepa ea geosynthetic. Sebopeho sa sebopeho ke mokokotlo oa geomesh oa mahlakore a mararo, mahlakore ka bobeli a khomaretsoe ka li-geotextile tse sa lohiloeng tse hlokahalang. The 3D geonet core e na le likhopo tse teteaneng tse otlolohileng le likhopo tse tšekaletseng holimo le tlase. Metsi a ka tlas'a lefatše a ka ntšoa ka potlako tseleng, 'me a na le mokhoa oa ho lokisa likoti o ka thibelang metsi a capillary tlas'a meroalo e phahameng. Ka nako e ts'oanang, e ka boela ea phetha karolo ea ho itšehla thajana le ho matlafatsa motheo.
Sekoti sa polasetiki se foufetseng ke mofuta oa lisebelisoa tsa metsi tsa geotechnical tse entsoeng ka motheo oa polasetiki le lesela la sefe. Mokotla oa polasetiki o entsoe haholo ka resin ea maiketsetso ea thermoplastic mme e theha sebopeho sa marang-rang se nang le mahlakore a mararo ka extrusion e chesang e qhibilihisang. E na le litšobotsi tsa porosity e phahameng, pokello e ntle ea metsi, ts'ebetso e matla ea drainage, khanyetso e matla ea khatello le ho tšoarella hantle.
Pipe e kenang ka bonolo ke tsamaiso ea liphaephe e sebelisetsoang ho bokella metsi le metsi a pula, e tsejoang hape e le tsamaiso ea hose drainage kapa tsamaiso ea ho bokella li-hose. E entsoe ka lisebelisoa tse bonolo, hangata li-polymers kapa lisebelisoa tsa fiber tsa maiketsetso, tse nang le metsi a mangata a kenang. Mosebetsi o ka sehloohong oa liphaephe tse bonolo tse kenang ka metsing ke ho bokella le ho ntša metsi a pula, ho thibela ho bokellana le ho bolokoa ha metsi, le ho fokotsa ho bokellana ha metsi ka holim'a metsi le ho phahama ha metsi a ka tlas'a lefatše. E sebelisoa hangata lits'ebetsong tsa drainage tsa metsi a pula, lits'ebetso tsa drainage tsa litsela, lits'ebetso tsa ho lokisa naha, le merero e meng ea boenjiniere.
Motsoako e sa keneleng metsi le drainage poleiti amohela e khethehileng Craft polasetiki poleiti extrusion e koaletsoeng barrel khetla protrusions thehoa concave convex khetla lera, tsoela pele, le sebaka dimensional tse tharo le itseng tšehetsa bophahamo ba ka mamella phahameng e telele, a ke ke a hlahisa deformation. Bokaholimo ba khetla e koahelang lera la ho sefa ha geotextile, ho etsa bonnete ba hore mocha oa drainage ha o thibele ka lebaka la lintho tse kantle, joalo ka likaroloana kapa konkreite e ka morao.
Boto ea polokelo ea metsi le ea drainage e entsoe ka polyethylene e phahameng haholo (HDPE) kapa polypropylene (PP), e entsoeng ka ho futhumatsa, ho hatella le ho bōptjoa. Ke boto e bobebe e ka etsang mocha oa ho ntša metsi ka mokhoa o itseng oa ho tšehetsa sebaka sa mahlakore a mararo 'me o ka boloka metsi.