How much rain do WISY filters collect?

WISY AG · Last updated: 22.03.2024
Worth knowing · 1 min. reading duration

The majority of individual precipitation events in the temperate climate zone, which includes Europe, tend to be light. With these light rainfall events, the efficiency of the filters increases to up to 99 %.

How much rain do WISY filters collect?
Rainwater Harvesting & Industrial Filtration
Share post!
In the event of heavy rain or thunderstorms, the proportion of filtered water is smaller. However, heavy thunderstorms only account for a small proportion of the total annual rainfall.

As a result, the WISY rainwater filters receive an annual average of approx. Filter 90% of the total rainfall and direct it towards the cistern and use 10% to continuously rinse the filter and keep it clean. This residual water volume automatically transports the dirt into the sewer.