Scupper pipes have positive closing arrangements fitted at their ship's side outlets, excepting those in upper hangars of large aircraft carriers, which are open throughout their length.
Imibhobho yekukhupha amanzi inecwangciso lekuvala amanzi dululo dufakwe kwisiphumi kwicala lenqanawe ngaphandle kwezo zikwishedi ephezulu zenganawe ethwala inqwelo-ntaka ezinkulu, ezivulekileyo ebudeni bezo bonke.