The fire pool, which looks like a swimming pool, is built on a side of the homestead but is not maintained.
The Presidency organised firefighters from Richards Bay to come and demonstrate how the pool could be used as a source of water in case of a fire.
General Mondli Zuma, head of special projects, said the firefighters had come with their own fire engine and other equipment because the ongoing investigations into Nkandla had halted all the work that was being done.
“Whether you call it a fire pool or swimming pool what is important is [that] there is water [to fight fires],” he said