From pools to waterfalls
For example, a glass pane 1,150 by 1,150 mm is 27.04 mm thick and its composition is the following: 8EXC/1.52PVB+XIR/8EXC/1,52SG/8EXC. This code tells us that in reality this piece of glass is actually made up of a sandwich of three 8 mm extra-clear (8EXC) glass panes and two thin films of plastic material that also ensure the glass doesn’t shatter into a thousand pieces should it break. Of the three glass panes two are structural, whilst the third, the internal one, the one we would walk on, is considered sacrificial, as it’s potentially more exposed to risk of damage. What’s the largest pool CRN has fitted onto one of its yachts? Aboard our 73 metre Yalla, on the lower deck astern, we put a pool 7.8 x 3.3 m with variable depth, for a total capacity of about 23 cubic metres. In the part where one swims, thanks to the device that makes it possible to swim against a current fitted to the pool, minimum depth is 1.2 m. From pools we’ve moved on to waterfalls: are there additional problems in such cases? What are your experiences on this front? We haven’t as yet fitted a waterfall to one of our yachts, but right now we are studying one for the 79 metre under construction. From a technical point of view there are no major problems that need to be addressed, apart from the hydraulics. For example, for the waterfall we’re studying, the water, taken from the pool, falls back into it sliding down a glass pane. The whole system is thus relatively simple. If instead the waterfall does not flow back into the pool the system will be a little more complex but, all in all, the problem will be limited to the proper sizing of the hydraulic circuit and the pumps. Then you’ll need to study the kind of jet you’d need for the desired effect, the aesthetic effect, the scenography: a wider or narrower blade of water, multiple jets, or whatever.