Our vision: Building Recycle Ready. In 10 years’ time 

every new building will have its own greywater recycling system 

At CES 2020, Hydraloop launched globally and had its worldwide breakthrough. Hydraloop was awarded as ‘Best of Innovation’ in the category ’Sustainability, Eco-design, and Smart Energy’ – and also won ‘Best Start-Up’, ‘Best Sustainable Product’, and the overall award ‘Best of the Best’, beating more than 4000 competitors in different categories.

Today, Hydraloop has extended its partner network over all continents. In the documentary Brave Blue World, the company is featured as one of the solutions to solve the worldwide water crisis. Hydraloop is based on the Water Campus in Leeuwarden, the Netherlands and at the Global Water Center in Milwaukee, United States.

Founder Arthur Valkieser started Hydraloop based on an insight: “It’s absurd that in the 21st century people still keep flushing their toilets with precious water, as it is becoming scarcer every day.”


After installing one of the first prototypes of a decentral water recycling system in his own home, he became invested in water recycling. Valkieser spent years of research and development to create a compact, affordable, stylish, easy-to-use, low maintenance device that saves 45% on water usage and sewage emission, but also saves energy and reduces carbon footprint.

The challenge was to create a system that drastically reduces water usage without compromise on living comfort or personal hygiene. He brought first Hydraloop to market in 2017:


Within three years, Hydraloop installed its innovative systems in countries throughout Europe and Africa and gained international recognition for its sustainable approach.

Water recycling systems should become a standard item in every single home and building, just like climate control, solar panels, or heat pumps


Hydraloop is member of:


Welcome to the Hydraloop newsroom where you can read all about our exciting journey, spreading our vision around the globe

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Hydraloop in the News

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ISH digital 2021

Against the background of the Covid-19 pandemic, the world’s leading trade fair for HVAC + Water will bring the sector together digitally from 22 to 26 March 2021. The aim: to link exhibitors, visitors, experts and journalists for five days, to offer high-grade content and to present a comprehensive programme of events.

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Change Now, Paris 27 - 29 May 2021

The accelerator event for a better world.


ChangeNOW is the world’s largest gathering of innovations for the planet.

Over 3 days, the summit puts the spotlight on the most concrete and innovative solutions  to face the World’s biggest challenges.

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EU Green Week 2021 1 -5 June 2021


EU Green Week 2021 will be an opportunity to engage with all stakeholders and interested citizens on how we can work together to make the ambition for a zero pollution and toxic-free environment a reality.

VivaTech, Paris 16 -19 June 2021


This is where business meets innovation. We bring together the best innovation actors to ignite positive change in business and for society. We act as a global catalyst for digital transformation and startup growth. 

For 2021, we’re launching an unmissable hybrid edition. Expect the best of both worlds, with a blend of online and in-person for an augmented event experience. You’ll be able to discover the latest innovations, inspiring speakers, budding startups and much more, in Paris or simply from your couch.

The VivaTech 2021 edition will take place on June 16 - 19, online and in-person in Paris

Building Holland, Amsterdam 2 - 4 Nov. 2021


Building Holland is all about making the Netherlands more sustainable. Building Holland is the innovative event for construction and real estate. The focus is on trends, developments and innovations with a direct relationship to making the Netherlands sustainable.


This event is a combination of innovative partners, an extensive conference program and side events. An event not to be missed for professionals who want to know how the climate goals can be achieved. Sample card of solutions, new concepts, special activities, trends and striking applications.

Hydraloop has exhibited at the following trade fairs

15 - 25 March 2021

WateReuse Symposium

9 - 10 December 2020

Virtual Trade Mission Olympic

Games 2024, Paris

3 November 2020

Provada Real Estate


7 - 10 Jan 2020


Las Vegas

10 Okt. 2019

Customer event Heembouw,


3-5 June 2019

GES 2019,


15 - 17 March 2019

Beurs Eigen Huis,


23 - 25 Oct. 2018

Wetex, Dubai, UAE

14 - 18 May 2018

IFAT, Munich, Germany

22 - 25 Jan. 2018

Klimahouse Bolzano, Italy

24 - 26 February 2021

Global Green Forum - Pollutec,


17 November 2020

Virtual Trade Mission NL,


4 - 8 March 2020

Sejem Dom,


5 - 8 Nov 2019



25-27 Sept. 2019

Water Tech Hub Tour,

Milwaukee USA

16-18 May 2019

Viva Technology,


26 - 29 Nov. 2018

The Big 5, Dubai, UAE

4 Oct. 2018

Innovation Expo, Rotterdam, Netherlands

7 - 10 May 2018

Seeds & Chips, Milan, Italy

14 - 17 Jan. 2018

International Water Summit, Abu Dhabi, UAE

11 - 14 January 2021

Digital CES 2021,

Las Vegas

10 - 11 November 2020

Virtual Expo Digital Water,


3 - 6 March 2020

Aquatherm Prague,

Czech Republic

30 Okt - 2 Nov 2019

Pollutec Maroc


23-25 Sept. 2019

WEFTEC 2019,

Chicago USA

9-11 April 2019

Building Holland,


27 - 30 Nov. 2018

Pollutec, Lyon, France

24 - 27 Sep. 2018

European Water Tech Week, Leeuwarden, Netherlands

17 - 19 Apr. 2018

Building Green, Aarhus, Denmark

31 Okt. - 3 Nov 2017

Aquatech Amsterdam, Netherlands

15 - 16 December 2020

NABC Digital Business Days,


3 - 11 November 2020

Virtual Trade Mission Ecomondo,


29 Feb - 8 March 2020



17 Okt. 2019

Energy and Sustainability Network and Inspiration Day

12 Sept. 2019

CFP Green Buildings,


19 - 21 March 2019

Vakbeurs Aqua Nederland,


13 - 15 Nov. 2018

IWater, Barcelona, Spain

24 - 27 June 2018

WISA, Capetown, South Africa

13 March 2018

Aqua Vakbeurs, Gorinchem, Netherlands



Winner MT Sprout Challenger50 Award
November 2020
Winner EUTOP50 Female Award for
Sustainable Innovation, December 2020
Exellence Lunch, invited by HRH King
Willem Alexander & HRH Queen Maxima
June 2020, Royal Palace The Hague
CES2020 Las Vegas January 2020

Hydraloop has won:

Best of the Best

Best Sustainable Product

Best Start Up

Best Innovation Award - Sustainability, Eco-Design & Smart Energy

Awarded: TIME Magazine top 25 best products at CES2020

Global Water Challenges Award - Water Europe
Brussels 2019
Rabobank Circularity Innovation Award
April 2019
Water Innovation & Stimulation Award (WIS) Leeuwarden 2018
Innovation Award - International Water Summit
Abu Dhabi 2018
Other nominations
2017 - 2020
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