Ishawa eyindilinga isethi enekhanda leshawa elilungisekayo, isibambo seshawa esisebenzayo esi-3, ubakaki weshawa eshelelayo olungisekayo kanye nepayipi eliguquguqukayo elingu-1.5meter eliphelele lensimbi engagqwali emnyama kanye nepayipi eliguquguqukayo elingu-0.5meter ukuze kuxhunywe empompini.