WISY Vortex Fine Filters

Sturdy construction, no additional filter housing chamber in concrete required - directly installed in subsoil material; compacted gravel foundation required for driveway installation.

Rainwater from the roof enters the filter inlet connection via a horizontal drainpipe and is widely spread over the cylinder-shaped filter mesh. The rainwater is then drawn through the vertical stainless-steel mesh of the fine filter insert by natural adhesion. The adhesion-force is a physical characteristic of water which "sticks" to surfaces like water drops on a car-windscreen.
The filtered water flows through the filter outlet to the storage tank, whilst the previously separated dirt & solids are washed into the drain with the remaining residual water.

More than 95% of rainwater entering the WFF WISY Vortex Fine Filter is collected by this principle.

WISY WFF Vortex Fine Filter | Video-links:

Rainwater Filter Operation| Video       
Separation of solids from water | Video       Aeration of filtered water | Video

WFF 100 & WFF 150 - Rainwater filters for roof areas of 200 m² & 500 m²

For underground installation.

Over ground installation of the WFF 100 & WFF 150 is possible via stainless steel wall mounting bracket (optional accessory).

WFF 100 - Rainwater Harvesting Filter - 200m²

- max. flow rate: 4.2 litres/second
- vehicle sustainability of up to 30 t
- adjustable directions for inlet & outlet
- domestic rainwater harvesting filter

WFF 150 - Rainwater Harvesting Filter - 500m²

- max. flow rate: 12.8 litres/second
- vehicle sustainability of up to 30 t
- adjustable directions for inlet & outlet
- commercial rainwater harvesting filter

WFF 300 - Industrial Rainwater Filter for roof areas of 3,000 m²

For underground installation.
- max. flow rate: 80.6 litres/second
- vehicle sustainability of up to 60 t
- adjustable inlet & outlet (360°)
- commercial/industrial rainwater harvesting filter