Lo mgangatho uphakanyisiweyo ulungiselelwe ngokukodwa ukulungiswa kwentambo elula kwizakhiwo ezikrelekrele.Umphandle womgangatho ophakanyisiweyo wenziwa ngeshiti lentsimbi ebandayo ye-zinc ekumgangatho ophezulu, umphezulu kunye nomzantsi zimbini ezizinki ezibandayo zentsimbi.Ubuchwephesha bendawo yokuwelda ubuchwephesha busetyenziswa phezulu nasezantsi kumgangatho ophakanyisiweyo, kwaye embindini uzaliswe ngesamente ekhaphukhaphu yezithako ezikhethekileyo eziphuhliswe yi-KEHUA.Ngale ndlela, iimveliso ezigqityiweyo zibonisa umthamo ophezulu wokulayisha kunye nokuqina.Umphezulu womgangatho ophakanyisiweyo unokugqunywa ngePVC ezahlukeneyo okanye iikhaphethi zelaphu.