The existing waterfall had not been used in over a year, and leaked pretty bad. We first created a new smooth layer over the existing slate tiles, then waterproofed the entire wall and side returns. Once watertight, we added layer upon layer of Tadelakt lime plaster- the very plaster used in Moroccan architecture for their elaborate spas. We used our own style by using multiple colours in a vertical application adding to the look of the falling water. Very pleased with the end result!