Completed in collaboration with Swissol Énergies Renouvelables, the Veos system (VRW) will supply several
buildings with recycled rainwater, including Olas Verdes – an LEED ecotourism site. This will reduce
the amount of drinking water required by the site by 40 to 50%, even during periods of drought.
Once the water has been collected from two roofs, it undergoes a pre-filtration process before being
stored. Connected in parallel and linked by an automatic transfer system, two tanks with a total capacity
of 20m3 (5,400 US gal) are connected to the Veos treatment station. This ensures that the quality of the
rainwater in the tanks is constantly maintained. The VRW rainwater technology will supply more than 20
toilets and 200m2 of green space.