Rainwater Filters and Collectors
WISY rainwater filters in many designs
There are rainwater filters from WISY for all fields of application: for the downpipe, for installation in the ground, in the rainwater tank or as a free-standing design.
With the WISY filter principle, the water is directed to the side, while any entrained particles simply fall down. Continuously, WISY rainwater filters clean themselves with a very high degree of efficiency. Learn more about how we accomplish this further below.
In the following you will find all our rainwater filters. Feel free to take a look around!
A rainwater filter is indispensable
Rainwater filters perform the most important function in collecting rainwater. Only if a rainwater filter removes all coarse components in the first stage the further stages can function reliably.
The rainwater filter represents the first purification stage of the four-stage system for collecting and storing rainwater.
Rainwater filters from WISY feature a vertical filter mesh. Leaves, moss or other solids simply fall by it and are rinsed away with a small amount of residual water. Actually, through a natural effect, we change the direction of flow of the water without deflecting or stopping particles and pollutants.
Rainwater filters from WISY do not collect dirt and the filter mesh cannot become clogged. This is the decisive advantage over filters with flat, horizontal filter surfaces, which always accumulate solid particles and have to be cleansed by hand or with an additional spraying device at short intervals.
Water has the nature of clinging to the walls of a pipe as it runs down it. The reason for this is adhesion force. Similar to a drop hanging from a blade of grass without falling or condensed water traveling under a tilted tent canvas, the direction of flow in the rainwater filter can be influenced.
We use this effect in all WISY rainwater filters to drain the rainwater off to the side. In doing so, the water travels through a fine mesh fabric made of stainless steel, which filters the rainwater.
This effect does not work on solids and dirt particles. They cannot be deflected to the side and fall to the bottom. There they are washed away.
Due to the vertical arrangement, the filter mesh can not get dirty or accumulate leaves and debris. The rainwater filter remains clean continuously, while only filtered water enters the cistern or returns to the production process.
Safety in the rainwater filter:
The open cross-section of the connected piping is retained throughout the entire rainwater filter. This means that even larger solids can pass freely. Even a tennis ball flushed from the roof cannot cause a blockage in the downpipe, as the rainwater filter does not narrow.