Rainwater Filtering

Rainwater Filtering Systems

Dealing with natural resources such as water is key to sustainability and environmental protection. Our claim at WISY is to make rainwater economically and ecologically available almost everywhere as a decentralized resource. That is why in our product range you will find high-performance products specially adapted for private and commercial use.

Rainwater Filters offer a unique type of filtration that separates and automatically cleans stormwater from dirt and also requires very little maintenance. We have suitable solutions for large buildings such as single-family houses, multi-apartment apartments, factory buildings, hospitals, shopping malls, sports complexes, stadiums or commercial business centers.

The 4 Step Rainwater Harvesting System

1. Pre-Tank Filtration

During the first step of the filtration process, up to 90% of rainwater is filtered & diverted to the rainwater tank. The remaining 10% are used to ensure the self-cleaning effect of the filter. WISY filters operate as a first flush device, directing leaves, dirt & debris to drainage or On-Site Detection Tank (OSD). Therefore, large particulates are removed. Due to the oxygenation of the water during the filteration process, the amount of harmful bacteria in the rainwater tank is greatly reduced.

2. Smoothed Inlet and Distribution

The smoothing inlet prevents incoming water from stirring up in the tank, distributes it smoothly and oxygenates the filtered rainwater.

3. Floating Suction Filter

The floating suction filter ensures the intake of the cleanest water from just below the water surface.

4. Multisiphon Overflow

By skimming floating particulates on the surface of the water, the Multisiphon prevents the formation of a surface barrier layer & ensures an optimum exchange of oxygen between air and water.

Domestic Rainwater Harvesting