Home: INTEWA GmbH

“We are unique” water self-sufficient and energy neutral

We have been in our own company building since 2020. Here we were finally able to install our technologies ourselves and show how easy it can be to be water self-sufficient and energy neutral. Is it worth it ? Yes absolutely! The additional costs for the entire building are under 500.00 / month.

See how it works here

Water Treatment of Rainwater and Greywater

The treatment and reuse of water from a wide variety of sources, such as rainwater or greywater, but also effluent water from wastewater treatment plants, offers great potential for saving drinking water. When used as process water, up to 65% of the original drinking water consumption can be saved. If the water is even treated decentrally to drinking water quality, it is even possible to become completely self-sufficient.

Pre-assembled Greywater Recycling Systems

Up to 65% of the daily water demand can be saved with a greywater recycling system. This can quickly pay off economically. Our NSF 350 Type C certified plant technology meets the highest standards worldwide. We supply complete systems and components worldwide from private applications to commercial systems from 600 m³ up to 48,600 m³ treatment capacity / day.

Learn more about pre-assembled Greywater Recycling Systems

INTEWA CONNECT

With our new control and monitoring system I-CONNECT, we offer our customers the possibility of independent maintenance and monitoring of their plant in the field of water treatment, stormwater management or fire water storage. This technology, which combines hardware and software, can be operated worldwide via PC, tablet or smartphone.

Learn more about I-CONNECT monitoring system

Water we're in our element

The core areas of INTEWA GmbH are water treatment of rainwater and greywater as well as stormwater management. As an internationally operating company, we have been developing and distributing innovative products and systems for over 30 years.

Water treatment of rainwater and greywater

Whether individual products or entire complete systems, when it comes to the treatment or reuse of water, you will find your suitable solution with us. We support you among others in the areas:

Drinking water from rainwater
Greywater recycling
Rainwater harvesting

Solutions for commercial & domestic projects

Stormwater management

Think decentralized and use cost-saving solutions in the field of infiltration and attenuation of stormwater on your property. Benefit from a space-saving and sustainable variant for different rainfall events and soil conditions with our DRAINMAX tunnel trenches.

AQUALOOP

Installation kit for water treatme

AQUALOOP

Installation kit for water treatme

DRAINMAX

Tunnel infiltration trench

DRAINMAX

Tunnel infiltration trench

PURAIN

Filter

PURAIN

Clean rainwater – lowest maintenance effort

RAINMASTER Serie

Energy-efficient supply

RAINMASTER

energy-efficient supply

PLURAFIT

A modular filter and chamber kit

PLURAFIT

A modular filter and chamber kit

SEPAMAT

System separation

SEPAMAT

System separation

Fire water supply according to DIN 14230

To ensure that you can guarantee a fast initial supply of fire water in the event of an emergency, we offer you different variants for implementation. We offer you underground tanks, which come into play when you want to keep the necessary volume available in the most space-saving way possible. Our GRP tanks with a storage volume of 15 to 250 m³ represent one solution option.

System separation to DIN EN 1717

The INTEWA system separator "SEPAMAT" isolates the drinking water system from the consumer. It protects drinking water against contamination caused by backflow of pollutants from the consumer point of use. System separation is installed between the municipal drinking water supply and one or more fixtures. These must be separated in accordance with Category 5 of the current drinking water regulations contained in DIN EN1717.

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References overview

Since 1993, we have been working with our customers in both the commercial and private construction sectors to implement sustainable solutions for dealing with our most important resource: water. We support you in the planning and development from the beginning and are still there for you with our service far beyond the finalization of your project.

News

AIX-Net-WWR Alliance meeting | Water reuse fair

We are pleased to present the research project AIX-Net-WWR - the “Aachen Network for Wastewater Reuse”.

Water supply become the standard at municipal level?

An exciting workshop in Zurich that dealt with precisely this question. More information are in the…

More News

Project support from A to Z

There are many aspects to consider when planning and implementing a construction project. In a short time, you have to make many decisions that affect the entire construction phase. With regard to your rainwater or greywater solution, we accompany you through all phases, from the planning to the execution of your project.

Our range of services

Concept creation and preliminary pricing
Dimensioning with Rainplaner software
Compilation of tenders
Creation of CAD system drawings
Support for exporting companies
Technical documentation
System monitoring

With our knowledge portal, we offer you a wide range of information on the topics of rainwater management and water reuse.

INTEWA Wiki

Do you have any questions or are you interested in a non-binding offer?
We are looking forward to your contact.

Contact

In our own online store you will find detailed product information.

INTEWA Store

Dimensioning of INTEWA products

Planning sheets for different applications

Rainplaner software

Name	Purpose	Lifetime	Type	Provider
_gat	Used to throttle request rate.	1 day	HTML	Google
_gcl_au	Used by Google AdSense to experiment with advertisement efficiency.	3 months	HTML	Google
_gat_UA-15426553-1	missing translation: trackingobject._gat_UA-15426553-1.desc	2 years	HTML	Google
_gid	Used to distinguish users.	1 day	HTML	Google
AMP_TOKEN	Contains a token that can be used to retrieve a Client ID from AMP Client ID service. Other possible values indicate opt-out, request in progress or an error retrieving a Client ID from AMP Client ID service.	1 year	HTML	Google
_dc_gtm_--property-id--	Used by DoubleClick (Google Tag Manager) to help identify the visitors by either age, gender or interests.	2 years	HTML	Google
_ga	Used to distinguish users.	2 years	HTML	Google
xs	missing translation: trackingobject.xs.desc	1 year	HTML	facebook
_fbp	Stores the unique visitor ID.	28 days	HTML	facebook
facebookPixel	If JavaScript is not enabled, this pixel initiates a connection to facebook.	none	Pixel	facebook
YouTube	Is used to connect to YouTube and to display videos.	none	Connection	YouTube

Commercial

Domestic

Further information

Infiltration

Attenuation

Further information

Main products

Further products

Downloads

INTEWA headquarters

Further information

Water we're in our element

Water treatment of rainwater and greywater

Stormwater management

INTEWA main products

AQUALOOP

AQUALOOP

DRAINMAX

DRAINMAX

PURAIN

PURAIN

RAINMASTER Serie

RAINMASTER

PLURAFIT

PLURAFIT

SEPAMAT

SEPAMAT

Fire water supply according to DIN 14230

System separation to DIN EN 1717

References overview

Greywater recycling in social housing in France (Kopie 1)

Greywater recycling in social housing in France

Drinking water production from rainwater

Self-sufficient container house

Process water from small wastewater treatment plant at INTEWA

Potable water from rainwater at INTEWA

Water treatment for guesthouse in Plitvice National Park

Michelle and Barack Obama Sports center uses greywater recycling

Marriott Hotel Moxy with greywater recycling & adiabatic cooling

Smart water recycling in a museum in Los Angeles

Adiabatic cooling & use of greywater in the Lumen Office Campus

School in LA uses water reuse

Municipality receives 3 fire water storage tanks

Rainwater harvesting in supermarket

Guest house uses greywater recycling incl. UV treatment

Greywater recycling in school in Poland

Senior campus completely modern with stormwater infiltration

Sustainable drinking water from rainwater harvesting in Bavaria

System separator insert for horse drinkers

Smart greywater harvesting in the Black Forest

Fire water supply for solar park

Campsite Gerhardhof relies on sustainable use of grey water

Bus depot receives fire-fighting water supply

Ecological greywater harvesting in the French embassy

Best conditions for stormwater infiltration

AQUALOOP system in the veterans' home

Fire water supply for supermarket

Infiltration system under school garden Project

Design building only uses rainwater

Onsite water treatment of greywater & rainwater

Use of rainwater for a grammar school

Stormwater attenuation for Carl-Zeiss parking garage

GRP storage tank for fire-fighting water supply in US clinic

Car park recieves rainwater attenuation

Eataly in Los Angeles stages grey water

Single-family eco-house in the Ardennes

High-end monitor manufacturer relies on secure fire water supply

Stormwater infiltration for the Krefeld commercial vehicle centre

Rainwater harvesting in Singapur

Marketplace receives fire water tank

Rainwater treatment for livestock watering

Perfect solution for tight spaces

Drinking water for a Tiny House

Weekend house in the Black Forest

Tiny House in the USA

Grey water recycling for 32 residential units

Rainwater harvesting in Oxford

Wind farm with own fire water

Rainwater utilisation in Belgium

Belgian new building uses rainwater