Area Of Application - wisy WFF 150 Anleitung Für Einbau Und Betrieb

Area of application

The WISY Vortex Fine Filter (hereafter referred to as "WFF") is primarily
designed for installation below ground. However, it is also suitable for
indoor installation.
Please observe the information and warning notices pertaining to in-
door installation in the section headed "Indoor installation" in these
instructions.
The best surfaces areas are pitched roofs of slate, clay tiles, concrete
tiles or foil and sheet metal roofs.
In the case of green roofs, the retention and possible discolouration of
rainwater must be taken into account. For this reason we recommend,
that when connecting green roof areas to rainwater utilisation systems,
the use of substrates that meet the increased demands on the cleanli-
ness of the rainwater run-off. In bitumen roofs, tar and carbon leaching
can discolour the water.
Asbestos-cement roofs are unsuitable and must be renovated before
before connecting them to rainwater harvesting systems.
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