Wisy AG


The handling of natural resources such as water is the key to sustainability and environmental protection.

Our vision at WISY is to make rainwater almost everywhere available as a decentralized resource and therefore usable, both economically and ecologically.

For this reason, you will find high-performance products for private and commercial use in our range.


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Wisy AG

The handling of natural resources such as water is the key to sustainability and environmental protection.

Our vision at WISY is to make rainwater almost everywhere available as a decentralized resource and therefore usable, both economically and ecologically.

For this reason, you will find high-performance products for private and commercial use in our range.


Read more
Made in Germany

Production in Germany

Unique filtration technique

Unique Filtration technique

Large product portfolio

Large product portfolio

Sustainable products

Sustainable products

low maintenance and durable

Low maintenance and durable

Ratgeber

Professional consultation

Made in Germany

Production in Germany

Innovativ

Unique filter technology

Overview

WISY top categories

Collect rainwater

Learn everything you need to know about collecting and using rainwater.

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Large-scale rainwater systems

Our rainwater harvesting system is easily scalable and designed for professional use in large buildings.

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Protect drinking water

Discover our components for the protection of drinking water.

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Industrial filtration

Learn more about our high-quality filters for the efficient separation of liquid media and solids for use in industry & commerce.

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Our product portfolio

We are your right contact for:

Regenwasserfilter

Rainwater filter

All WISY filters are low-maintenance and self-cleaning. Due to the vertical filter mesh, potential dirt is easily drained away and solids stay away from your rainwater system.

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Pump & controller

Pumps & Pump controller

Suction and pressure pumps perfectly designed for the conditions encountered when transporting rainwater. Powerful and 97 % more economical in electricity consumption thanks to the WISY pump controller!

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Ansaugfilter

Floating suction filters

Suction filter that floats automatically and extracts rainwater at the cleanest water depth. Made of stainless steel, they withstand heavy use. Protects pump and rainwater unit.

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rainwater units

Rainwater units

By integrating cistern water, a rainwater unit enables you to use your own rainwater. The automatic mains water top-up constantly guarantees the supply with clear water.

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Regenspeicher, Zisternen & Regentonnen

Rain storage tanks, cisterns & rain barrels

The cistern for storing the collected rainwater is an important component of the rainwater system. WISY offers you suitable storage units for permanent use.

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Trennstationen und Trinkwasser-Nachspeisung

Break tanks and mains water top-up systems

We have the right break tanks and mains water top-up systems to safely separate process water from the public supply network for commercial or industrial use.

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Industriefilter

Commercial & Industrial Filters

If pressure ever arises, we can deliver. Our industry-suitable vortex fine filters are available pressure-tight up to 6 bar on request. Rainwater harvesting with us also commercially!

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Regenwasserüberlauf

Rainwater
Overflows

WISY offers a multifunctional overflow. Optionally with various options, e.g. backwater protection and small animal protection.

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Our top recommendations

A selection of our wide product range

Since 1989: WISY quality

Made in Germany

In many countries, tap water is monitored and treated to ensure drinking water quality at all times. However, a significant part of it is used for applications which do not require drinking water quality such as e. g. flushing toilets.

Therefore, we have specialised in developing first-class technology to make rainwater available for a wide range of applications. With our help, you can reduce your water costs and make a valuable contribution to protecting the environment.

References

A selection of our worldwide projects

Google Headquarters
New York, USA

Sheraton Hotel
Kuala Lumpur, Malaysia