AquaReturn: Spanish innovation for saving water in the home
AquaReturn is a solution developed in Spain that helps reduce water waste while we wait for the water to run hot. It is an initiative focused on water efficiency that shares the same goal as other domestic innovations, such as Acqua Tempus, from Arelia.
Every time we open a hot water tap, we can let several liters of drinking water run until the desired temperature is reached. An everyday gesture that, repeated daily in millions of homes, represents an opportunity to improve the use of this resource.
To address this problem, technological innovation offers solutions such as AquaReturn—a device developed in Spain that recirculates water through the pipes until it reaches the desired temperature, preventing it from being lost down the drain while you wait.
AquaReturn, a solution originating in Spain
Behind AquaReturn is a Spanish company based in Alicante. The device was developed by inventor Alfonso Cuervo-Arango, also from Alicante, who spent years designing a solution to prevent the waste of domestic hot water. The product reached the market in 2013 under the concept Made in Spain.
Its operation is based on a simple principle: when the hot water tap is turned on and the water has not yet reached 35 °C, the unit circulates it back through the plumbing to the heating system. Once the target temperature is reached, an audible signal indicates that it is ready for use.
In this way, AquaReturn helps to make better use of drinking water in homes with individual hot water production systems, such as boilers, heaters or water heaters, as long as the installation is compatible.
According to the manufacturer's estimates, savings can reach an average of 10,000 liters of water per person per year, although the figure depends on the characteristics of the home and consumption habits.
Spanish innovation for more responsible water consumption
AquaReturn is part of an increasingly significant trend: the development of technology aimed at reducing water waste in daily activities. In Spain, various companies are working on solutions that address this challenge from different perspectives.
An example is Acqua Tempus, the shower economizer developed by the Spanish company Arelia. While AquaReturn acts while waiting for hot water, Acqua Tempus allows you to control the shower time and limit consumption through a timed system.
Both devices address the same need, though they employ different mechanisms: making better use of available water and encouraging more efficient consumption habits in the home.
This coincidence highlights the role of national innovation in the development of practical tools to move towards a more responsible use of natural resources.
How does AquaReturn help reduce water waste?
The device is designed to be installed under the sink, without the need for major works, although it is necessary to previously check its compatibility with domestic installation.
Its main features include:
Water recirculation: returns water that has not yet reached the desired temperature to the heating circuit.
Use of drinking water: prevents water from being lost down the drain while waiting.
Temperature alert: includes an audible signal to indicate when the water is ready.
Compact installation: it is designed to be integrated into certain existing domestic installations.
The actual impact on consumption and expenditure will depend on the conditions of use. Therefore, it is advisable to separately evaluate water savings, the device’s electricity consumption, and the energy performance of the heating system.
Technology and sustainability: small changes with daily impact
Saving water does not depend on a single measure. Repairing leaks, installing efficient fixtures, shortening shower times, and avoiding letting the tap run unnecessarily are all actions that help reduce household consumption.
Solutions such as AquaReturn and Acqua Tempus show how technology can intervene at different moments of water use to reduce waste.
Beyond their practical utility, the development of these products in Spain reflects how business innovation can be directed toward specific environmental needs.
Making better use of each liter of water is a collective challenge in which Spanish innovation also has a lot to contribute. With proposals such as AquaReturn and Acqua Tempus, water savings can be incorporated into daily routines through solutions designed for very common situations in any home.
