It can also be used only for the carriage of liquid cargoes, at least as far as the dock section is concerned, since it would otherwise be necessary to provide hatches that are watertight when submerged, which introduces new problems.
Ingasetyenziselwa ukuthutha umthwalo ongamanzi kangangecandelo lomkhumbe kuba kuyimfuneko ibonelelwe ngesivalo sokuqinisa angangeni amanzi xa itshona inqanawa ezisa ingxaki ezintsha