WISY Rainwater Harvesting Systems with Tank in PE

WISY Rainwater Tank with pre-assembled Vortex Fine Filter

Compression resistant rainwater storage tanks from WISY for rainwater harvesting systems. Equipped with integrated Smoothing Inlet & WISY Combi-Filter for roof areas of up to 200m² - underground installation.

The fully assembled and nearly self-cleaning WISY Vortex Fine Filter (Combi-Filter) is located outside of the rainwater harvesting tank. The separate filter manhole allows easy filter access without opening the rainwater tank lid.

Manufactured seamlessly in PE for maximum stability

Due to the structural stability WISY rainwater storage tanks are suitable for all rainwater collection applications. The robust construction is manufactured seamlessly in one piece, using environmentally friendly and physiologically safe Polyethylene (PE).

Vehicle-duty approved manhole covers

WISY rainwater storage tanks are vehicle duty approved and can therefore not only be installed in the garden but also in the front driveway. ATV tested stability - suitable for non-commercial car-based vehicles.

Improved storage water quality

Smooth inside walls prevent deposit accumulation and thus improve hygiene & storage water quality.

Tank Stability and Safety

As the excavation around the rainwater harvesting tank is filled with gravel, the stable bottom shape ensures the rainwater storage tank is fully supported from below. The rainwater harvesting tank is equipped with a child-safety-device which is TÜV-certified (German Technical Inspection Authority) and non-slip manhole cover in zinc-plated steel.

No heavy lifting equipment required

Due to its lightweight the tank can be moved and installed without heavy lifting equipment. Two integrated steel lifting hooks at the top allow lowering of the rainwater harvesting tank into the excavation.

Non-Return Valve in Tank Base

For additional safety, the base of the rainwater storage tank is equipped with a counterbalance release-valve in case of high groundwater level. The valve can be closed with a supplied cap.

Rainwater Harvesting Tank with Pump & Mains Water Top-Up Set

WISY Rainwater Harvesting Tanks are delivered to site in Ireland and Northern Ireland as part of a complete WISY Rainwater Harvesting System which also includes a rainwater pressure pump and automatic mains water back-up unit.