Isihlungi somoya siyithuluzi elibamba uthuli ekuhambeni kwesigaba ezimbili esiqinile segesi futhi sihlanza igesi ngesenzo sezinto zokuhlunga ze-porous.
Umjikelezo wokufaka esikhundleni sesihlungi somoya kufanele anqunywe ngokuya ngokusetshenziswa kwemoto kanye nemvelo yokushayela. Ukuhlola okujwayelekile nokulungiswa kuyizindlela ezibalulekile zokuqinisekisa ukusebenza okujwayelekile kwemoto.