Broken-off sea cocks, transducers and other thru-hull fittings can be made nearly watertight with the handle of a tool such as a screwdriver.
Iitepu zdwondle ezaphukileyo, itiansducas nezinye izifakelo zethru-hull zingophantse zenziwe zingangeni manzi ngesiphatho sesixhebo esinjengesiskrufu-driver.