The Lesotho Highlands Water Project, which supplies water from the mountainous kingdom to Gauteng, will shut in the next two months for maintenance work.

The country’s economic hub gets part of its water supplies from the system.

The Highlands tunnels had to be inspected at least every decade, which required they be drained completely, meaning no water flew through to the Vaal River system, cabinet spokeswoman Phumla Williams said on Friday.

“The total volume of water scheduled to be transferred to the Vaal system will, however, still be transferred,” she said. Water transfers in recent months had been increased to make up for the two-month shutdown and provide a storage buffer to the Vaal dam. – Bloomberg