Many suburban areas are being rezoned as high-density areas and it is expected that the number of high-rise buildings will begin to increase once more. Meanwhile, many of the existing high rise buildings in central Johannesburg, Hillbrow, Berea, etc. will need refurbishing. Against this backdrop, the challenges of reticulating water in high-rise buildings become apparent.
I was interviewed on the subject at the IMESA exhibition recently. You can download or view the interview here: Reticulation in high rise buildings.